63818900151 has 4 divisors (see below), whose sum is σ = 85091866872. Its totient is φ = 42545933432.

The previous prime is 63818900137. The next prime is 63818900153. The reversal of 63818900151 is 15100981836.

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

It is a cyclic number.

It is not a de Polignac number, because 63818900151 - 2⁶ = 63818900087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63818900153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10636483356 + ... + 10636483361.

It is an arithmetic number, because the mean of its divisors is an integer number (21272966718).

Almost surely, 2^63818900151 is an apocalyptic number.

63818900151 is a deficient number, since it is larger than the sum of its proper divisors (21272966721).

63818900151 is a wasteful number, since it uses less digits than its factorization.

63818900151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21272966720.

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 63818900151 in words is "sixty-three billion, eight hundred eighteen million, nine hundred thousand, one hundred fifty-one".