80512638 has 16 divisors (see below), whose sum is σ = 161173776. Its totient is φ = 26812800.

The previous prime is 80512637. The next prime is 80512657. The reversal of 80512638 is 83621508.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 80512599 and 80512608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80512637) 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, 1620 + ... + 12792.

It is an arithmetic number, because the mean of its divisors is an integer number (10073361).

Almost surely, 2^80512638 is an apocalyptic number.

80512638 is an abundant number, since it is smaller than the sum of its proper divisors (80661138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80512638 is a wasteful number, since it uses less digits than its factorization.

80512638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12379.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 80512638 is about 8972.8834830282. The cubic root of 80512638 is about 431.8053499795.

The spelling of 80512638 in words is "eighty million, five hundred twelve thousand, six hundred thirty-eight".