7816488057 has 12 divisors (see below), whose sum is σ = 12903408960. Its totient is φ = 4466564568.

The previous prime is 7816488023. The next prime is 7816488131. The reversal of 7816488057 is 7508846187.

It is a happy number.

It is not a de Polignac number, because 7816488057 - 2¹⁹ = 7815963769 is a prime.

It is a super-2 number, since 2×7816488057² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7816487994 and 7816488012.

It is not an unprimeable number, because it can be changed into a prime (7816488257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62035557 + ... + 62035682.

It is an arithmetic number, because the mean of its divisors is an integer number (1075284080).

Almost surely, 2^7816488057 is an apocalyptic number.

It is an amenable number.

7816488057 is a deficient number, since it is larger than the sum of its proper divisors (5086920903).

7816488057 is a wasteful number, since it uses less digits than its factorization.

7816488057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124071252 (or 124071249 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 54.

The square root of 7816488057 is about 88410.9046272008. The cubic root of 7816488057 is about 1984.5888919724.

The spelling of 7816488057 in words is "seven billion, eight hundred sixteen million, four hundred eighty-eight thousand, fifty-seven".