4978537992 has 80 divisors (see below), whose sum is σ = 14764814460. Its totient is φ = 1561890816.

The previous prime is 4978537973. The next prime is 4978537999. The reversal of 4978537992 is 2997358794.

4978537992 is a `hidden beast` number, since 4 + 9 + 7 + 8 + 537 + 9 + 92 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4960948356 + 17589636 = 70434^2 + 4194^2 .

It is not an unprimeable number, because it can be changed into a prime (4978537999) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 214953 + ... + 236984.

Almost surely, 2^4978537992 is an apocalyptic number.

It is an amenable number.

4978537992 is an abundant number, since it is smaller than the sum of its proper divisors (9786276468).

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

4978537992 is a wasteful number, since it uses less digits than its factorization.

4978537992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451972 (or 451959 counting only the distinct ones).

The product of its digits is 34292160, while the sum is 63.

The square root of 4978537992 is about 70558.7556012718. The cubic root of 4978537992 is about 1707.5258031624.

The spelling of 4978537992 in words is "four billion, nine hundred seventy-eight million, five hundred thirty-seven thousand, nine hundred ninety-two".