7712407851381 has 12 divisors (see below), whose sum is σ = 11140208929408. Its totient is φ = 5141575578024.

The previous prime is 7712407851373. The next prime is 7712407851383. The reversal of 7712407851381 is 1831587042177.

7712407851381 is a `hidden beast` number, since 7 + 7 + 1 + 2 + 40 + 7 + 8 + 513 + 81 = 666.

It is not a de Polignac number, because 7712407851381 - 2³ = 7712407851373 is a prime.

It is a super-2 number, since 2×7712407851381² (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 (7712407851383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 762085 + ... + 4000698.

Almost surely, 2^{7712407851381} is an apocalyptic number.

It is an amenable number.

7712407851381 is a deficient number, since it is larger than the sum of its proper divisors (3427801078027).

7712407851381 is a wasteful number, since it uses less digits than its factorization.

7712407851381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4942712 (or 4942709 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 54.

The spelling of 7712407851381 in words is "seven trillion, seven hundred twelve billion, four hundred seven million, eight hundred fifty-one thousand, three hundred eighty-one".