49660425579 has 4 divisors (see below), whose sum is σ = 66213900776. Its totient is φ = 33106950384.

The previous prime is 49660425569. The next prime is 49660425599. The reversal of 49660425579 is 97552406694.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 49660425579 - 2¹¹ = 49660423531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49660425539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8276737594 + ... + 8276737599.

It is an arithmetic number, because the mean of its divisors is an integer number (16553475194).

Almost surely, 2^49660425579 is an apocalyptic number.

49660425579 is a deficient number, since it is larger than the sum of its proper divisors (16553475197).

49660425579 is a wasteful number, since it uses less digits than its factorization.

49660425579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16553475196.

The product of its (nonzero) digits is 16329600, while the sum is 57.

The spelling of 49660425579 in words is "forty-nine billion, six hundred sixty million, four hundred twenty-five thousand, five hundred seventy-nine".