31440802852290 has 32 divisors (see below), whose sum is σ = 81262382757696. Its totient is φ = 7739274548160.

The previous prime is 31440802852231. The next prime is 31440802852307. The reversal of 31440802852290 is 9225820804413.

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, 40308721216 + ... + 40308721995.

It is an arithmetic number, because the mean of its divisors is an integer number (2539449461178).

Almost surely, 2^{31440802852290} is an apocalyptic number.

31440802852290 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31440802852290 is an abundant number, since it is smaller than the sum of its proper divisors (49821579905406).

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

31440802852290 is a wasteful number, since it uses less digits than its factorization.

31440802852290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80617443234.

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 31440802852290 in words is "thirty-one trillion, four hundred forty billion, eight hundred two million, eight hundred fifty-two thousand, two hundred ninety".