9977663351 has 2 divisors, whose sum is σ = 9977663352. Its totient is φ = 9977663350.

The previous prime is 9977663321. The next prime is 9977663357. The reversal of 9977663351 is 1533667799.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9977663351 - 2²⁶ = 9910554487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9977663357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4988831675 + 4988831676.

It is an arithmetic number, because the mean of its divisors is an integer number (4988831676).

Almost surely, 2^9977663351 is an apocalyptic number.

9977663351 is a deficient number, since it is larger than the sum of its proper divisors (1).

9977663351 is an equidigital number, since it uses as much as digits as its factorization.

9977663351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6429780, while the sum is 56.

The square root of 9977663351 is about 99888.2543195145. The cubic root of 9977663351 is about 2152.8293991618.

The spelling of 9977663351 in words is "nine billion, nine hundred seventy-seven million, six hundred sixty-three thousand, three hundred fifty-one".