63373981057 has 8 divisors (see below), whose sum is σ = 63662243040. Its totient is φ = 63085928640.

The previous prime is 63373981037. The next prime is 63373981061. The reversal of 63373981057 is 75018937336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63373981057 - 2¹⁵ = 63373948289 is a prime.

It is a super-2 number, since 2×63373981057² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63373980995 and 63373981013.

It is not an unprimeable number, because it can be changed into a prime (63373981037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570558 + ... + 672520.

It is an arithmetic number, because the mean of its divisors is an integer number (7957780380).

Almost surely, 2^63373981057 is an apocalyptic number.

It is an amenable number.

63373981057 is a deficient number, since it is larger than the sum of its proper divisors (288261983).

63373981057 is a wasteful number, since it uses less digits than its factorization.

63373981057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104783.

The product of its (nonzero) digits is 2857680, while the sum is 52.

The spelling of 63373981057 in words is "sixty-three billion, three hundred seventy-three million, nine hundred eighty-one thousand, fifty-seven".