31475890190 has 8 divisors (see below), whose sum is σ = 56656602360. Its totient is φ = 12590356072.

The previous prime is 31475890183. The next prime is 31475890291. The reversal of 31475890190 is 9109857413.

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

It is a super-2 number, since 2×31475890190² (a number of 22 digits) contains 22 as substring.

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, 1573794500 + ... + 1573794519.

It is an arithmetic number, because the mean of its divisors is an integer number (7082075295).

Almost surely, 2^31475890190 is an apocalyptic number.

31475890190 is a deficient number, since it is larger than the sum of its proper divisors (25180712170).

31475890190 is a wasteful number, since it uses less digits than its factorization.

31475890190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147589026.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 31475890190 in words is "thirty-one billion, four hundred seventy-five million, eight hundred ninety thousand, one hundred ninety".