81753760462 has 16 divisors (see below), whose sum is σ = 140819875200. Its totient is φ = 35204968440.

The previous prime is 81753760447. The next prime is 81753760493. The reversal of 81753760462 is 26406735718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97791162 + ... + 97791997.

It is an arithmetic number, because the mean of its divisors is an integer number (8801242200).

Almost surely, 2^81753760462 is an apocalyptic number.

81753760462 is a deficient number, since it is larger than the sum of its proper divisors (59066114738).

81753760462 is a wasteful number, since it uses less digits than its factorization.

81753760462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195583191.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 81753760462 in words is "eighty-one billion, seven hundred fifty-three million, seven hundred sixty thousand, four hundred sixty-two".