7961677508397 has 16 divisors (see below), whose sum is σ = 10810509696000. Its totient is φ = 5210565409584.

The previous prime is 7961677508381. The next prime is 7961677508417. The reversal of 7961677508397 is 7938057761697.

It is not a de Polignac number, because 7961677508397 - 2⁴ = 7961677508381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7961677504397) 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, 31153147 + ... + 31407672.

It is an arithmetic number, because the mean of its divisors is an integer number (675656856000).

Almost surely, 2^{7961677508397} is an apocalyptic number.

It is an amenable number.

7961677508397 is a deficient number, since it is larger than the sum of its proper divisors (2848832187603).

7961677508397 is a wasteful number, since it uses less digits than its factorization.

7961677508397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62561600.

The product of its (nonzero) digits is 840157920, while the sum is 75.

The spelling of 7961677508397 in words is "seven trillion, nine hundred sixty-one billion, six hundred seventy-seven million, five hundred eight thousand, three hundred ninety-seven".