402504754273 has 2 divisors, whose sum is σ = 402504754274. Its totient is φ = 402504754272.

The previous prime is 402504754237. The next prime is 402504754291. The reversal of 402504754273 is 372457405204.

Together with previous prime (402504754237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 366779218129 + 35725536144 = 605623^2 + 189012^2 .

It is a cyclic number.

It is not a de Polignac number, because 402504754273 - 2¹³ = 402504746081 is a prime.

It is a super-2 number, since 2×402504754273² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402504754973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201252377136 + 201252377137.

It is an arithmetic number, because the mean of its divisors is an integer number (201252377137).

Almost surely, 2^402504754273 is an apocalyptic number.

It is an amenable number.

402504754273 is a deficient number, since it is larger than the sum of its proper divisors (1).

402504754273 is an equidigital number, since it uses as much as digits as its factorization.

402504754273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 43.

The spelling of 402504754273 in words is "four hundred two billion, five hundred four million, seven hundred fifty-four thousand, two hundred seventy-three".