62978417840 has 120 divisors (see below), whose sum is σ = 165449187360. Its totient is φ = 22242435072.

The previous prime is 62978417833. The next prime is 62978417881. The reversal of 62978417840 is 4871487926.

62978417840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×62978417840² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 209696 + ... + 412224.

It is an arithmetic number, because the mean of its divisors is an integer number (1378743228).

Almost surely, 2^62978417840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 62978417840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82724593680).

62978417840 is an abundant number, since it is smaller than the sum of its proper divisors (102470769520).

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

62978417840 is a wasteful number, since it uses less digits than its factorization.

62978417840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202591 (or 202572 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 62978417840 in words is "sixty-two billion, nine hundred seventy-eight million, four hundred seventeen thousand, eight hundred forty".