31376681419 has 4 divisors (see below), whose sum is σ = 31602413080. Its totient is φ = 31150949760.

The previous prime is 31376681407. The next prime is 31376681437. The reversal of 31376681419 is 91418667313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91418667313 = 41 ⋅2229723593.

It is a cyclic number.

It is not a de Polignac number, because 31376681419 - 2⁷ = 31376681291 is a prime.

It is a super-2 number, since 2×31376681419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31376685419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112865622 + ... + 112865899.

It is an arithmetic number, because the mean of its divisors is an integer number (7900603270).

Almost surely, 2^31376681419 is an apocalyptic number.

31376681419 is a deficient number, since it is larger than the sum of its proper divisors (225731661).

31376681419 is a wasteful number, since it uses less digits than its factorization.

31376681419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225731660.

The product of its digits is 653184, while the sum is 49.

The spelling of 31376681419 in words is "thirty-one billion, three hundred seventy-six million, six hundred eighty-one thousand, four hundred nineteen".