787553047057 has 16 divisors (see below), whose sum is σ = 908528441472. Its totient is φ = 668695386240.

The previous prime is 787553046989. The next prime is 787553047079. The reversal of 787553047057 is 750740355787.

It is a de Polignac number, because none of the positive numbers 2^k-787553047057 is a prime.

It is a super-2 number, since 2×787553047057² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 787553046992 and 787553047010.

It is not an unprimeable number, because it can be changed into a prime (787553047157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24126207 + ... + 24158827.

It is an arithmetic number, because the mean of its divisors is an integer number (56783027592).

Almost surely, 2^787553047057 is an apocalyptic number.

It is an amenable number.

787553047057 is a deficient number, since it is larger than the sum of its proper divisors (120975394415).

787553047057 is a wasteful number, since it uses less digits than its factorization.

787553047057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64968.

The product of its (nonzero) digits is 28812000, while the sum is 58.

The spelling of 787553047057 in words is "seven hundred eighty-seven billion, five hundred fifty-three million, forty-seven thousand, fifty-seven".