49080781947 has 4 divisors (see below), whose sum is σ = 65441042600. Its totient is φ = 32720521296.

The previous prime is 49080781933. The next prime is 49080781973. The reversal of 49080781947 is 74918708094.

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

It is not a de Polignac number, because 49080781947 - 2⁸ = 49080781691 is a prime.

It is a super-2 number, since 2×49080781947² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49080781987) 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, 8180130322 + ... + 8180130327.

It is an arithmetic number, because the mean of its divisors is an integer number (16360260650).

Almost surely, 2^49080781947 is an apocalyptic number.

49080781947 is a deficient number, since it is larger than the sum of its proper divisors (16360260653).

49080781947 is a wasteful number, since it uses less digits than its factorization.

49080781947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16360260652.

The product of its (nonzero) digits is 4064256, while the sum is 57.

The spelling of 49080781947 in words is "forty-nine billion, eighty million, seven hundred eighty-one thousand, nine hundred forty-seven".