63552379591 has 16 divisors (see below), whose sum is σ = 65887150336. Its totient is φ = 61236000000.

The previous prime is 63552379559. The next prime is 63552379603. The reversal of 63552379591 is 19597325536.

63552379591 = T₂₀₅₈₃₄ + T₂₀₅₈₃₅ + T₂₀₅₈₃₆.

It is a 8-Lehmer number, since φ(63552379591) divides (63552379591-1)⁸.

It is a cyclic number.

It is not a de Polignac number, because 63552379591 - 2⁵ = 63552379559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63552379511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7056091 + ... + 7065091.

It is an arithmetic number, because the mean of its divisors is an integer number (4117946896).

Almost surely, 2^63552379591 is an apocalyptic number.

63552379591 is the 205836-th centered triangular number.

63552379591 is a deficient number, since it is larger than the sum of its proper divisors (2334770745).

63552379591 is a wasteful number, since it uses less digits than its factorization.

63552379591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9994.

The product of its digits is 7654500, while the sum is 55.

The spelling of 63552379591 in words is "sixty-three billion, five hundred fifty-two million, three hundred seventy-nine thousand, five hundred ninety-one".