977986997351 has 32 divisors (see below), whose sum is σ = 1274834816640. Its totient is φ = 728072441856.

The previous prime is 977986997341. The next prime is 977986997371. The reversal of 977986997351 is 153799689779.

977986997351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 977986997351 - 2²² = 977982803047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (977986997311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5602355 + ... + 5774283.

It is an arithmetic number, because the mean of its divisors is an integer number (39838588020).

Almost surely, 2^977986997351 is an apocalyptic number.

977986997351 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

977986997351 is a deficient number, since it is larger than the sum of its proper divisors (296847819289).

977986997351 is a wasteful number, since it uses less digits than its factorization.

977986997351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175643.

The product of its digits is 1620304560, while the sum is 80.

The spelling of 977986997351 in words is "nine hundred seventy-seven billion, nine hundred eighty-six million, nine hundred ninety-seven thousand, three hundred fifty-one".