6742299978 has 16 divisors (see below), whose sum is σ = 14982888960. Its totient is φ = 2247433308.

The previous prime is 6742299917. The next prime is 6742299997. The reversal of 6742299978 is 8799922476.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62428650 + ... + 62428757.

It is an arithmetic number, because the mean of its divisors is an integer number (936430560).

Almost surely, 2^6742299978 is an apocalyptic number.

6742299978 is an abundant number, since it is smaller than the sum of its proper divisors (8240588982).

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

6742299978 is a wasteful number, since it uses less digits than its factorization.

6742299978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124857418 (or 124857412 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The square root of 6742299978 is about 82111.5094125056. The cubic root of 6742299978 is about 1889.1626777247.

The spelling of 6742299978 in words is "six billion, seven hundred forty-two million, two hundred ninety-nine thousand, nine hundred seventy-eight".