81714959470 has 16 divisors (see below), whose sum is σ = 148461573168. Its totient is φ = 32380506880.

The previous prime is 81714959461. The next prime is 81714959471. The reversal of 81714959470 is 7495941718.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81714959471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38183491 + ... + 38185630.

It is an arithmetic number, because the mean of its divisors is an integer number (9278848323).

Almost surely, 2^81714959470 is an apocalyptic number.

81714959470 is a deficient number, since it is larger than the sum of its proper divisors (66746613698).

81714959470 is a wasteful number, since it uses less digits than its factorization.

81714959470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76369235.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 81714959470 in words is "eighty-one billion, seven hundred fourteen million, nine hundred fifty-nine thousand, four hundred seventy".