71825801530 has 32 divisors (see below), whose sum is σ = 147767527296. Its totient is φ = 24624057024.

The previous prime is 71825801483. The next prime is 71825801603. The reversal of 71825801530 is 3510852817.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1079077 + ... + 1143703.

It is an arithmetic number, because the mean of its divisors is an integer number (4617735228).

Almost surely, 2^71825801530 is an apocalyptic number.

71825801530 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71825801530 is an abundant number, since it is smaller than the sum of its proper divisors (75941725766).

71825801530 is a wasteful number, since it uses less digits than its factorization.

71825801530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80518.

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 71825801530 in words is "seventy-one billion, eight hundred twenty-five million, eight hundred one thousand, five hundred thirty".