31047871549304 has 8 divisors (see below), whose sum is σ = 58214759154960. Its totient is φ = 15523935774648.

The previous prime is 31047871549271. The next prime is 31047871549307. The reversal of 31047871549304 is 40394517874013.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 31047871549304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31047871549307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940491971824 + ... + 1940491971839.

It is an arithmetic number, because the mean of its divisors is an integer number (7276844894370).

Almost surely, 2^{31047871549304} is an apocalyptic number.

It is an amenable number.

31047871549304 is a deficient number, since it is larger than the sum of its proper divisors (27166887605656).

31047871549304 is a wasteful number, since it uses less digits than its factorization.

31047871549304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880983943669 (or 3880983943665 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 31047871549304 in words is "thirty-one trillion, forty-seven billion, eight hundred seventy-one million, five hundred forty-nine thousand, three hundred four".