63990381483 has 32 divisors (see below), whose sum is σ = 110179852800. Its totient is φ = 35946164448.

The previous prime is 63990381463. The next prime is 63990381541. The reversal of 63990381483 is 38418309936.

It is not a de Polignac number, because 63990381483 - 2¹⁶ = 63990315947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63990381463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2858116 + ... + 2880417.

It is an arithmetic number, because the mean of its divisors is an integer number (3443120400).

Almost surely, 2^63990381483 is an apocalyptic number.

63990381483 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

63990381483 is a deficient number, since it is larger than the sum of its proper divisors (46189471317).

63990381483 is a wasteful number, since it uses less digits than its factorization.

63990381483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5738608 (or 5738602 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 63990381483 in words is "sixty-three billion, nine hundred ninety million, three hundred eighty-one thousand, four hundred eighty-three".