7153107957997 has 4 divisors (see below), whose sum is σ = 7153120475676. Its totient is φ = 7153095440320.

The previous prime is 7153107957991. The next prime is 7153107958019. The reversal of 7153107957997 is 7997597013517.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1462621753321 + 5690486204676 = 1209389^2 + 2385474^2 .

It is a cyclic number.

It is not a de Polignac number, because 7153107957997 - 2³⁵ = 7118748219629 is a prime.

It is a super-2 number, since 2×7153107957997² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7153107957991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5358508 + ... + 6558949.

It is an arithmetic number, because the mean of its divisors is an integer number (1788280118919).

Almost surely, 2^{7153107957997} is an apocalyptic number.

It is an amenable number.

7153107957997 is a deficient number, since it is larger than the sum of its proper divisors (12517679).

7153107957997 is a wasteful number, since it uses less digits than its factorization.

7153107957997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12517678.

The product of its (nonzero) digits is 131274675, while the sum is 70.

It can be divided in two parts, 7153107 and 957997, that added together give a square (8111104 = 2848²).

The spelling of 7153107957997 in words is "seven trillion, one hundred fifty-three billion, one hundred seven million, nine hundred fifty-seven thousand, nine hundred ninety-seven".