63420742400 has 216 divisors, whose sum is σ = 162664005504. Its totient is φ = 24455577600.

The previous prime is 63420742373. The next prime is 63420742471. The reversal of 63420742400 is 424702436.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 74002772 + ... + 74003628.

Almost surely, 2^63420742400 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 63420742400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81332002752).

63420742400 is an abundant number, since it is smaller than the sum of its proper divisors (99243263104).

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

63420742400 is a wasteful number, since it uses less digits than its factorization.

63420742400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

The spelling of 63420742400 in words is "sixty-three billion, four hundred twenty million, seven hundred forty-two thousand, four hundred".