31415014791420 has 192 divisors, whose sum is σ = 96763841516160. Its totient is φ = 7567514652672.

The previous prime is 31415014791397. The next prime is 31415014791431. The reversal of 31415014791420 is 2419741051413.

It is a super-2 number, since 2×31415014791420² (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 63 ways as a sum of consecutive naturals, for example, 15104502 + ... + 17058018.

It is an arithmetic number, because the mean of its divisors is an integer number (503978341230).

Almost surely, 2^{31415014791420} is an apocalyptic number.

31415014791420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31415014791420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48381920758080).

31415014791420 is an abundant number, since it is smaller than the sum of its proper divisors (65348826724740).

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

31415014791420 is a wasteful number, since it uses less digits than its factorization.

31415014791420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953984 (or 1953982 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 31415014791420 in words is "thirty-one trillion, four hundred fifteen billion, fourteen million, seven hundred ninety-one thousand, four hundred twenty".