49979837448 has 36 divisors (see below), whose sum is σ = 135367197615. Its totient is φ = 16659313488.

The previous prime is 49979837393. The next prime is 49979837449. The reversal of 49979837448 is 84473897994.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

49979837448 is a `hidden beast` number, since 4 + 9 + 97 + 98 + 3 + 7 + 448 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24989918724 + 24989918724 = 158082^2 + 158082^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=158082.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (49979837449) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1883811 + ... + 1910157.

Almost surely, 2^49979837448 is an apocalyptic number.

It is an amenable number.

49979837448 is an abundant number, since it is smaller than the sum of its proper divisors (85387360167).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

49979837448 is an frugal number, since it uses more digits than its factorization.

49979837448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52706 (or 26352 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 72.

Multiplying 49979837448 by its sum of digits (72), we get a square (3598548296256 = 1896984²).

49979837448 divided by its sum of digits (72) gives a square (694164409 = 26347²).

The spelling of 49979837448 in words is "forty-nine billion, nine hundred seventy-nine million, eight hundred thirty-seven thousand, four hundred forty-eight".