185401456468057 has 8 divisors (see below), whose sum is σ = 186312204838656. Its totient is φ = 184492175864832.

The previous prime is 185401456468051. The next prime is 185401456468073. The reversal of 185401456468057 is 750864654104581.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-185401456468057 is a prime.

It is a super-2 number, since 2×185401456468057² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 185401456468057.

It is not an unprimeable number, because it can be changed into a prime (185401456468051) 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, 366688593 + ... + 367193854.

It is an arithmetic number, because the mean of its divisors is an integer number (23289025604832).

Almost surely, 2^{185401456468057} is an apocalyptic number.

It is an amenable number.

185401456468057 is a deficient number, since it is larger than the sum of its proper divisors (910748370599).

185401456468057 is an equidigital number, since it uses as much as digits as its factorization.

185401456468057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733883687.

The product of its (nonzero) digits is 129024000, while the sum is 64.

The spelling of 185401456468057 in words is "one hundred eighty-five trillion, four hundred one billion, four hundred fifty-six million, four hundred sixty-eight thousand, fifty-seven".