31489454966 has 4 divisors (see below), whose sum is σ = 47234182452. Its totient is φ = 15744727482.

The previous prime is 31489454957. The next prime is 31489454993. The reversal of 31489454966 is 66945498413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66945498413 = 12907 ⋅5186759.

It is a super-2 number, since 2×31489454966² (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 as a sum of consecutive naturals, namely, 7872363740 + ... + 7872363743.

It is an arithmetic number, because the mean of its divisors is an integer number (11808545613).

Almost surely, 2^31489454966 is an apocalyptic number.

31489454966 is a deficient number, since it is larger than the sum of its proper divisors (15744727486).

31489454966 is a wasteful number, since it uses less digits than its factorization.

31489454966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15744727485.

The product of its digits is 22394880, while the sum is 59.

The spelling of 31489454966 in words is "thirty-one billion, four hundred eighty-nine million, four hundred fifty-four thousand, nine hundred sixty-six".