9777430994 has 32 divisors (see below), whose sum is σ = 15075535104. Its totient is φ = 4754292480.

The previous prime is 9777430979. The next prime is 9777431023. The reversal of 9777430994 is 4990347779.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8863847 + ... + 8864949.

It is an arithmetic number, because the mean of its divisors is an integer number (471110472).

Almost surely, 2^9777430994 is an apocalyptic number.

9777430994 is a deficient number, since it is larger than the sum of its proper divisors (5298104110).

9777430994 is a wasteful number, since it uses less digits than its factorization.

9777430994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922.

The product of its (nonzero) digits is 12002256, while the sum is 59.

The square root of 9777430994 is about 98880.8929672462. The cubic root of 9777430994 is about 2138.3309396785.

The spelling of 9777430994 in words is "nine billion, seven hundred seventy-seven million, four hundred thirty thousand, nine hundred ninety-four".