31142773455544 has 16 divisors (see below), whose sum is σ = 58812791599800. Its totient is φ = 15459362362272.

The previous prime is 31142773455527. The next prime is 31142773455583. The reversal of 31142773455544 is 44555437724113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14003044507 + ... + 14003046730.

Almost surely, 2^{31142773455544} is an apocalyptic number.

It is an amenable number.

31142773455544 is a deficient number, since it is larger than the sum of its proper divisors (27670018144256).

31142773455544 is a wasteful number, since it uses less digits than its factorization.

31142773455544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28006091382 (or 28006091378 counting only the distinct ones).

The product of its digits is 28224000, while the sum is 55.

The spelling of 31142773455544 in words is "thirty-one trillion, one hundred forty-two billion, seven hundred seventy-three million, four hundred fifty-five thousand, five hundred forty-four".