59721095641 has 3 divisors (see below), whose sum is σ = 59721340021. Its totient is φ = 59720851262.

The previous prime is 59721095639. The next prime is 59721095653. The reversal of 59721095641 is 14659012795.

It is a happy number.

The square root of 59721095641 is 244379.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 59721095641 - 2¹ = 59721095639 is a prime.

It is a super-2 number, since 2×59721095641² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (59721095141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 122190 + ... + 366568.

Almost surely, 2^59721095641 is an apocalyptic number.

59721095641 is the 244379-th square number.

59721095641 is the 122190-th centered octagonal number.

It is an amenable number.

59721095641 is a deficient number, since it is larger than the sum of its proper divisors (244380).

59721095641 is an frugal number, since it uses more digits than its factorization.

59721095641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488758 (or 244379 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

Multiplying 59721095641 by its sum of digits (49), we get a square (2926333686409 = 1710653²).

The spelling of 59721095641 in words is "fifty-nine billion, seven hundred twenty-one million, ninety-five thousand, six hundred forty-one".