612351171070021 has 16 divisors (see below), whose sum is σ = 622112813925120. Its totient is φ = 602607850004160.

The previous prime is 612351171069973. The next prime is 612351171070027. The reversal of 612351171070021 is 120070171153216.

It is a cyclic number.

It is not a de Polignac number, because 612351171070021 - 2¹³ = 612351171061829 is a prime.

It is a super-2 number, since 2×612351171070021² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612351171070027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5403343860 + ... + 5403457186.

It is an arithmetic number, because the mean of its divisors is an integer number (38882050870320).

Almost surely, 2^{612351171070021} is an apocalyptic number.

It is an amenable number.

612351171070021 is a deficient number, since it is larger than the sum of its proper divisors (9761642855099).

612351171070021 is a wasteful number, since it uses less digits than its factorization.

612351171070021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193404.

The product of its (nonzero) digits is 17640, while the sum is 37.

The spelling of 612351171070021 in words is "six hundred twelve trillion, three hundred fifty-one billion, one hundred seventy-one million, seventy thousand, twenty-one".