6961025747257 has 4 divisors (see below), whose sum is σ = 7263679040640. Its totient is φ = 6658372453876.

The previous prime is 6961025747251. The next prime is 6961025747279. The reversal of 6961025747257 is 7527475201696.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6961025747257 - 2²³ = 6961017358649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6961025747195 and 6961025747204.

It is not an unprimeable number, because it can be changed into a prime (6961025747251) 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, 151326646657 + ... + 151326646702.

It is an arithmetic number, because the mean of its divisors is an integer number (1815919760160).

Almost surely, 2^{6961025747257} is an apocalyptic number.

It is an amenable number.

6961025747257 is a deficient number, since it is larger than the sum of its proper divisors (302653293383).

6961025747257 is a wasteful number, since it uses less digits than its factorization.

6961025747257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302653293382.

The product of its (nonzero) digits is 44452800, while the sum is 61.

The spelling of 6961025747257 in words is "six trillion, nine hundred sixty-one billion, twenty-five million, seven hundred forty-seven thousand, two hundred fifty-seven".