621071725011 has 8 divisors (see below), whose sum is σ = 876807141264. Its totient is φ = 389692062720.

The previous prime is 621071724947. The next prime is 621071725061. The reversal of 621071725011 is 110527170126.

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

It is not a de Polignac number, because 621071725011 - 2⁶ = 621071724947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (621071725061) 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, 6088938430 + ... + 6088938531.

It is an arithmetic number, because the mean of its divisors is an integer number (109600892658).

Almost surely, 2^621071725011 is an apocalyptic number.

621071725011 is a deficient number, since it is larger than the sum of its proper divisors (255735416253).

621071725011 is a wasteful number, since it uses less digits than its factorization.

621071725011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12177876981.

The product of its (nonzero) digits is 5880, while the sum is 33.

Adding to 621071725011 its reverse (110527170126), we get a palindrome (731598895137).

The spelling of 621071725011 in words is "six hundred twenty-one billion, seventy-one million, seven hundred twenty-five thousand, eleven".