63402187380 has 96 divisors (see below), whose sum is σ = 202952386560. Its totient is φ = 14487258240.

The previous prime is 63402187369. The next prime is 63402187391. The reversal of 63402187380 is 8378120436.

It is an interprime number because it is at equal distance from previous prime (63402187369) and next prime (63402187391).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

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, 1376361 + ... + 1421679.

It is an arithmetic number, because the mean of its divisors is an integer number (2114087360).

Almost surely, 2^63402187380 is an apocalyptic number.

63402187380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63402187380 is an abundant number, since it is smaller than the sum of its proper divisors (139550199180).

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

63402187380 is a wasteful number, since it uses less digits than its factorization.

63402187380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48669 (or 48667 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 63402187380 in words is "sixty-three billion, four hundred two million, one hundred eighty-seven thousand, three hundred eighty".