9940819136 has 28 divisors (see below), whose sum is σ = 19781306640. Its totient is φ = 4956552960.

The previous prime is 9940819111. The next prime is 9940819153. The reversal of 9940819136 is 6319180499.

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, 193355 + ... + 239306.

Almost surely, 2^9940819136 is an apocalyptic number.

It is an amenable number.

9940819136 is a deficient number, since it is larger than the sum of its proper divisors (9840487504).

9940819136 is a wasteful number, since it uses less digits than its factorization.

9940819136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433032 (or 433022 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 9940819136 is about 99703.6565828957. The cubic root of 9940819136 is about 2150.1762347695.

The spelling of 9940819136 in words is "nine billion, nine hundred forty million, eight hundred nineteen thousand, one hundred thirty-six".