63057837261 has 4 divisors (see below), whose sum is σ = 84077116352. Its totient is φ = 42038558172.

The previous prime is 63057837259. The next prime is 63057837281. The reversal of 63057837261 is 16273875036.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 63057837261 - 2¹ = 63057837259 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63057837261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63057837281) 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, 10509639541 + ... + 10509639546.

It is an arithmetic number, because the mean of its divisors is an integer number (21019279088).

Almost surely, 2^63057837261 is an apocalyptic number.

It is an amenable number.

63057837261 is a deficient number, since it is larger than the sum of its proper divisors (21019279091).

63057837261 is a wasteful number, since it uses less digits than its factorization.

63057837261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21019279090.

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 63057837261 in words is "sixty-three billion, fifty-seven million, eight hundred thirty-seven thousand, two hundred sixty-one".