63089491551 has 4 divisors (see below), whose sum is σ = 84119322072. Its totient is φ = 42059661032.

The previous prime is 63089491547. The next prime is 63089491573. The reversal of 63089491551 is 15519498036.

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 63089491551 - 2² = 63089491547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63089491494 and 63089491503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63089491951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10514915256 + ... + 10514915261.

It is an arithmetic number, because the mean of its divisors is an integer number (21029830518).

Almost surely, 2^63089491551 is an apocalyptic number.

63089491551 is a deficient number, since it is larger than the sum of its proper divisors (21029830521).

63089491551 is a wasteful number, since it uses less digits than its factorization.

63089491551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21029830520.

The product of its (nonzero) digits is 1166400, while the sum is 51.

The spelling of 63089491551 in words is "sixty-three billion, eighty-nine million, four hundred ninety-one thousand, five hundred fifty-one".