49729770477 has 8 divisors (see below), whose sum is σ = 73673734080. Its totient is φ = 33153180300.

The previous prime is 49729770449. The next prime is 49729770511. The reversal of 49729770477 is 77407792794.

49729770477 is a `hidden beast` number, since 4 + 9 + 7 + 2 + 97 + 70 + 477 = 666.

It is not a de Polignac number, because 49729770477 - 2⁸ = 49729770221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49729770437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920921649 + ... + 920921702.

It is an arithmetic number, because the mean of its divisors is an integer number (9209216760).

Almost surely, 2^49729770477 is an apocalyptic number.

It is an amenable number.

49729770477 is a deficient number, since it is larger than the sum of its proper divisors (23943963603).

49729770477 is a wasteful number, since it uses less digits than its factorization.

49729770477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841843360 (or 1841843354 counting only the distinct ones).

The product of its (nonzero) digits is 43563744, while the sum is 63.

The spelling of 49729770477 in words is "forty-nine billion, seven hundred twenty-nine million, seven hundred seventy thousand, four hundred seventy-seven".