464625367740181 has 2 divisors, whose sum is σ = 464625367740182. Its totient is φ = 464625367740180.

The previous prime is 464625367740139. The next prime is 464625367740187. The reversal of 464625367740181 is 181047763526464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 462277090396900 + 2348277343281 = 21500630^2 + 1532409^2 .

It is a cyclic number.

It is not a de Polignac number, because 464625367740181 - 2³⁷ = 464487928786709 is a prime.

It is a super-2 number, since 2×464625367740181² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (464625367740187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232312683870090 + 232312683870091.

It is an arithmetic number, because the mean of its divisors is an integer number (232312683870091).

Almost surely, 2^{464625367740181} is an apocalyptic number.

It is an amenable number.

464625367740181 is a deficient number, since it is larger than the sum of its proper divisors (1).

464625367740181 is an equidigital number, since it uses as much as digits as its factorization.

464625367740181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 464625367740181 in words is "four hundred sixty-four trillion, six hundred twenty-five billion, three hundred sixty-seven million, seven hundred forty thousand, one hundred eighty-one".