31947867242080 has 48 divisors (see below), whose sum is σ = 75477229897104. Its totient is φ = 12779080266240.

The previous prime is 31947867242041. The next prime is 31947867242101. The reversal of 31947867242080 is 8024276874913.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40171174 + ... + 40958746.

It is an arithmetic number, because the mean of its divisors is an integer number (1572442289523).

Almost surely, 2^{31947867242080} is an apocalyptic number.

It is an amenable number.

31947867242080 is an abundant number, since it is smaller than the sum of its proper divisors (43529362655024).

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

31947867242080 is a wasteful number, since it uses less digits than its factorization.

31947867242080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041119 (or 1041111 counting only the distinct ones).

The product of its (nonzero) digits is 32514048, while the sum is 61.

The spelling of 31947867242080 in words is "thirty-one trillion, nine hundred forty-seven billion, eight hundred sixty-seven million, two hundred forty-two thousand, eighty".