1331936694 has 24 divisors (see below), whose sum is σ = 3148214472. Its totient is φ = 403617120.

The previous prime is 1331936677. The next prime is 1331936717. The reversal of 1331936694 is 4966391331.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3363279 + ... + 3363674.

It is an arithmetic number, because the mean of its divisors is an integer number (131175603).

Almost surely, 2^1331936694 is an apocalyptic number.

1331936694 is an abundant number, since it is smaller than the sum of its proper divisors (1816277778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1331936694 is a wasteful number, since it uses less digits than its factorization.

1331936694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6726972 (or 6726969 counting only the distinct ones).

The product of its digits is 314928, while the sum is 45.

The square root of 1331936694 is about 36495.7078846267. The cubic root of 1331936694 is about 1100.2579819153.

The spelling of 1331936694 in words is "one billion, three hundred thirty-one million, nine hundred thirty-six thousand, six hundred ninety-four".