191430768632 has 16 divisors (see below), whose sum is σ = 359163836640. Its totient is φ = 95653745536.

The previous prime is 191430768629. The next prime is 191430768637. The reversal of 191430768632 is 236867034191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191430768637) 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, 7691648 + ... + 7716495.

It is an arithmetic number, because the mean of its divisors is an integer number (22447739790).

Almost surely, 2^191430768632 is an apocalyptic number.

It is an amenable number.

191430768632 is a deficient number, since it is larger than the sum of its proper divisors (167733068008).

191430768632 is a wasteful number, since it uses less digits than its factorization.

191430768632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15409702 (or 15409698 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 191430768632 in words is "one hundred ninety-one billion, four hundred thirty million, seven hundred sixty-eight thousand, six hundred thirty-two".