31135474077573 has 4 divisors (see below), whose sum is σ = 41513965436768. Its totient is φ = 20756982718380.

The previous prime is 31135474077557. The next prime is 31135474077581. The reversal of 31135474077573 is 37577047453113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31135474077573 - 2⁴ = 31135474077557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31135474077583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5189245679593 + ... + 5189245679598.

It is an arithmetic number, because the mean of its divisors is an integer number (10378491359192).

Almost surely, 2^{31135474077573} is an apocalyptic number.

It is an amenable number.

31135474077573 is a deficient number, since it is larger than the sum of its proper divisors (10378491359195).

31135474077573 is a wasteful number, since it uses less digits than its factorization.

31135474077573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10378491359194.

The product of its (nonzero) digits is 25930800, while the sum is 57.

The spelling of 31135474077573 in words is "thirty-one trillion, one hundred thirty-five billion, four hundred seventy-four million, seventy-seven thousand, five hundred seventy-three".