63970213536 has 192 divisors, whose sum is σ = 204940108800. Its totient is φ = 19322696448.

The previous prime is 63970213519. The next prime is 63970213607. The reversal of 63970213536 is 63531207936.

63970213536 is a `hidden beast` number, since 6 + 3 + 97 + 0 + 21 + 3 + 536 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 63970213491 and 63970213500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 292855 + ... + 462281.

It is an arithmetic number, because the mean of its divisors is an integer number (1067396400).

Almost surely, 2^63970213536 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 63970213536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102470054400).

63970213536 is an abundant number, since it is smaller than the sum of its proper divisors (140969895264).

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

63970213536 is a wasteful number, since it uses less digits than its factorization.

63970213536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169488 (or 169474 counting only the distinct ones).

The product of its (nonzero) digits is 612360, while the sum is 45.

The spelling of 63970213536 in words is "sixty-three billion, nine hundred seventy million, two hundred thirteen thousand, five hundred thirty-six".