70651771407 has 12 divisors (see below), whose sum is σ = 116631495760. Its totient is φ = 40372440768.

The previous prime is 70651771397. The next prime is 70651771429. The reversal of 70651771407 is 70417715607.

70651771407 is a `hidden beast` number, since 70 + 6 + 5 + 177 + 1 + 407 = 666.

It is not a de Polignac number, because 70651771407 - 2⁶ = 70651771343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70651771207) 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, 560728282 + ... + 560728407.

Almost surely, 2^70651771407 is an apocalyptic number.

70651771407 is a deficient number, since it is larger than the sum of its proper divisors (45979724353).

70651771407 is a wasteful number, since it uses less digits than its factorization.

70651771407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121456702 (or 1121456699 counting only the distinct ones).

The product of its (nonzero) digits is 288120, while the sum is 45.

It can be divided in two parts, 706517 and 71407, that added together give a square (777924 = 882²).

The spelling of 70651771407 in words is "seventy billion, six hundred fifty-one million, seven hundred seventy-one thousand, four hundred seven".