6354977840 has 20 divisors (see below), whose sum is σ = 14775323664. Its totient is φ = 2541991104.

The previous prime is 6354977833. The next prime is 6354977911. The reversal of 6354977840 is 487794536.

It is a tau number, because it is divible by the number of its divisors (20).

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, 39718532 + ... + 39718691.

Almost surely, 2^6354977840 is an apocalyptic number.

It is an amenable number.

6354977840 is an abundant number, since it is smaller than the sum of its proper divisors (8420345824).

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

6354977840 is a wasteful number, since it uses less digits than its factorization.

6354977840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79437236 (or 79437230 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 53.

The square root of 6354977840 is about 79718.1148798691. The cubic root of 6354977840 is about 1852.2716521100.

The spelling of 6354977840 in words is "six billion, three hundred fifty-four million, nine hundred seventy-seven thousand, eight hundred forty".