81410392352 has 24 divisors (see below), whose sum is σ = 160995453696. Its totient is φ = 40522658112.

The previous prime is 81410392337. The next prime is 81410392409. The reversal of 81410392352 is 25329301418.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5697068 + ... + 5711339.

It is an arithmetic number, because the mean of its divisors is an integer number (6708143904).

Almost surely, 2^81410392352 is an apocalyptic number.

It is an amenable number.

81410392352 is a deficient number, since it is larger than the sum of its proper divisors (79585061344).

81410392352 is a wasteful number, since it uses less digits than its factorization.

81410392352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11408640 (or 11408632 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 81410392352 in words is "eighty-one billion, four hundred ten million, three hundred ninety-two thousand, three hundred fifty-two".