63491512102 has 4 divisors (see below), whose sum is σ = 95237268156. Its totient is φ = 31745756050.

The previous prime is 63491512031. The next prime is 63491512141. The reversal of 63491512102 is 20121519436.

63491512102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15872878024 + ... + 15872878027.

It is an arithmetic number, because the mean of its divisors is an integer number (23809317039).

Almost surely, 2^63491512102 is an apocalyptic number.

63491512102 is a deficient number, since it is larger than the sum of its proper divisors (31745756054).

63491512102 is a wasteful number, since it uses less digits than its factorization.

63491512102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31745756053.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 63491512102 in words is "sixty-three billion, four hundred ninety-one million, five hundred twelve thousand, one hundred two".