63922551545 has 4 divisors (see below), whose sum is σ = 76707061860. Its totient is φ = 51138041232.

The previous prime is 63922551443. The next prime is 63922551551. The reversal of 63922551545 is 54515522936.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9911397136 + 54011154409 = 99556^2 + 232403^2 .

It is a cyclic number.

It is not a de Polignac number, because 63922551545 - 2¹⁴ = 63922535161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63922551545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6392255150 + ... + 6392255159.

It is an arithmetic number, because the mean of its divisors is an integer number (19176765465).

Almost surely, 2^63922551545 is an apocalyptic number.

It is an amenable number.

63922551545 is a deficient number, since it is larger than the sum of its proper divisors (12784510315).

63922551545 is a wasteful number, since it uses less digits than its factorization.

63922551545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12784510314.

The product of its digits is 1620000, while the sum is 47.

The spelling of 63922551545 in words is "sixty-three billion, nine hundred twenty-two million, five hundred fifty-one thousand, five hundred forty-five".