61263558837801 has 6 divisors (see below), whose sum is σ = 88491807210170. Its totient is φ = 40842372558528.

The previous prime is 61263558837791. The next prime is 61263558837883. The reversal of 61263558837801 is 10873885536216.

61263558837801 is a `hidden beast` number, since 6 + 1 + 2 + 6 + 3 + 558 + 8 + 3 + 78 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 59076117837801 + 2187441000000 = 7686099^2 + 1479000^2 .

It is not a de Polignac number, because 61263558837801 - 2¹³ = 61263558829609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61263558837401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3403531046536 + ... + 3403531046553.

Almost surely, 2^{61263558837801} is an apocalyptic number.

It is an amenable number.

61263558837801 is a deficient number, since it is larger than the sum of its proper divisors (27228248372369).

61263558837801 is a wasteful number, since it uses less digits than its factorization.

61263558837801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6807062093095 (or 6807062093092 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 63.

The spelling of 61263558837801 in words is "sixty-one trillion, two hundred sixty-three billion, five hundred fifty-eight million, eight hundred thirty-seven thousand, eight hundred one".