7686742125381 has 128 divisors (see below), whose sum is σ = 12330630259200. Its totient is φ = 4204462080000.

The previous prime is 7686742125367. The next prime is 7686742125409. The reversal of 7686742125381 is 1835212476867.

It is not a de Polignac number, because 7686742125381 - 2²¹ = 7686740028229 is a prime.

It is a super-2 number, since 2×7686742125381² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7686742125341) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1572249985 + ... + 1572254873.

It is an arithmetic number, because the mean of its divisors is an integer number (96333048900).

Almost surely, 2^{7686742125381} is an apocalyptic number.

It is an amenable number.

7686742125381 is a deficient number, since it is larger than the sum of its proper divisors (4643888133819).

7686742125381 is a wasteful number, since it uses less digits than its factorization.

7686742125381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5591.

The product of its digits is 27095040, while the sum is 60.

The spelling of 7686742125381 in words is "seven trillion, six hundred eighty-six billion, seven hundred forty-two million, one hundred twenty-five thousand, three hundred eighty-one".