8031378662 has 4 divisors (see below), whose sum is σ = 12047067996. Its totient is φ = 4015689330.

The previous prime is 8031378643. The next prime is 8031378709. The reversal of 8031378662 is 2668731308.

It is a semiprime because it is the product of two primes.

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, 2007844664 + ... + 2007844667.

It is an arithmetic number, because the mean of its divisors is an integer number (3011766999).

Almost surely, 2^8031378662 is an apocalyptic number.

8031378662 is a deficient number, since it is larger than the sum of its proper divisors (4015689334).

8031378662 is a wasteful number, since it uses less digits than its factorization.

8031378662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015689333.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 8031378662 is about 89617.9594835767. The cubic root of 8031378662 is about 2002.6114771095.

The spelling of 8031378662 in words is "eight billion, thirty-one million, three hundred seventy-eight thousand, six hundred sixty-two".