31422630561024 has 144 divisors (see below), whose sum is σ = 86350713329664. Its totient is φ = 10133637888000.

The previous prime is 31422630561001. The next prime is 31422630561037. The reversal of 31422630561024 is 42016503622413.

It is a super-2 number, since 2×31422630561024² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 90368299 + ... + 90715349.

It is an arithmetic number, because the mean of its divisors is an integer number (599657731456).

Almost surely, 2^{31422630561024} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31422630561024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43175356664832).

31422630561024 is an abundant number, since it is smaller than the sum of its proper divisors (54928082768640).

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

31422630561024 is a wasteful number, since it uses less digits than its factorization.

31422630561024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350904 (or 350890 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 31422630561024 in words is "thirty-one trillion, four hundred twenty-two billion, six hundred thirty million, five hundred sixty-one thousand, twenty-four".