31272078743400 has 192 divisors, whose sum is σ = 105759648806400. Its totient is φ = 7580883168000.

The previous prime is 31272078743363. The next prime is 31272078743407. The reversal of 31272078743400 is 434787027213.

It is a self number, because there is not a number n which added to its sum of digits gives 31272078743400.

It is not an unprimeable number, because it can be changed into a prime (31272078743407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 356085495 + ... + 356173305.

It is an arithmetic number, because the mean of its divisors is an integer number (550831504200).

Almost surely, 2^{31272078743400} is an apocalyptic number.

31272078743400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31272078743400 is an abundant number, since it is smaller than the sum of its proper divisors (74487570063000).

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

31272078743400 is a wasteful number, since it uses less digits than its factorization.

31272078743400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141800 (or 141791 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 48.

The spelling of 31272078743400 in words is "thirty-one trillion, two hundred seventy-two billion, seventy-eight million, seven hundred forty-three thousand, four hundred".