31426742577 has 32 divisors (see below), whose sum is σ = 45430672000. Its totient is φ = 19256237568.

The previous prime is 31426742569. The next prime is 31426742587. The reversal of 31426742577 is 77524762413.

It is not a de Polignac number, because 31426742577 - 2³ = 31426742569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31426742587) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 714693 + ... + 757389.

It is an arithmetic number, because the mean of its divisors is an integer number (1419708500).

Almost surely, 2^31426742577 is an apocalyptic number.

31426742577 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

31426742577 is a deficient number, since it is larger than the sum of its proper divisors (14003929423).

31426742577 is a wasteful number, since it uses less digits than its factorization.

31426742577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43105.

The product of its digits is 1975680, while the sum is 48.

The spelling of 31426742577 in words is "thirty-one billion, four hundred twenty-six million, seven hundred forty-two thousand, five hundred seventy-seven".