31477749029 has 8 divisors (see below), whose sum is σ = 33106240512. Its totient is φ = 29887575120.

The previous prime is 31477749013. The next prime is 31477749041. The reversal of 31477749029 is 92094777413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31477749029 - 2⁴ = 31477749013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31477749229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9577709 + ... + 9580994.

It is an arithmetic number, because the mean of its divisors is an integer number (4138280064).

Almost surely, 2^31477749029 is an apocalyptic number.

It is an amenable number.

31477749029 is a deficient number, since it is larger than the sum of its proper divisors (1628491483).

31477749029 is a wasteful number, since it uses less digits than its factorization.

31477749029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19158787.

The product of its (nonzero) digits is 2667168, while the sum is 53.

The spelling of 31477749029 in words is "thirty-one billion, four hundred seventy-seven million, seven hundred forty-nine thousand, twenty-nine".