31552093861 has 8 divisors (see below), whose sum is σ = 33381326880. Its totient is φ = 29739720528.

The previous prime is 31552093819. The next prime is 31552093871. The reversal of 31552093861 is 16839025513.

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 31552093861 - 2¹⁷ = 31551962789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31552093871) 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, 4211071 + ... + 4218556.

It is an arithmetic number, because the mean of its divisors is an integer number (4172665860).

Almost surely, 2^31552093861 is an apocalyptic number.

It is an amenable number.

31552093861 is a deficient number, since it is larger than the sum of its proper divisors (1829233019).

31552093861 is a wasteful number, since it uses less digits than its factorization.

31552093861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8429843.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 31552093861 in words is "thirty-one billion, five hundred fifty-two million, ninety-three thousand, eight hundred sixty-one".