374270645381 has 2 divisors, whose sum is σ = 374270645382. Its totient is φ = 374270645380.

The previous prime is 374270645279. The next prime is 374270645383. The reversal of 374270645381 is 183546072473.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245486557156 + 128784088225 = 495466^2 + 358865^2 .

It is a cyclic number.

It is not a de Polignac number, because 374270645381 - 2²² = 374266451077 is a prime.

It is a super-2 number, since 2×374270645381² (a number of 24 digits) contains 22 as substring.

Together with 374270645383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (374270645383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187135322690 + 187135322691.

It is an arithmetic number, because the mean of its divisors is an integer number (187135322691).

Almost surely, 2^374270645381 is an apocalyptic number.

It is an amenable number.

374270645381 is a deficient number, since it is larger than the sum of its proper divisors (1).

374270645381 is an equidigital number, since it uses as much as digits as its factorization.

374270645381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 50.

The spelling of 374270645381 in words is "three hundred seventy-four billion, two hundred seventy million, six hundred forty-five thousand, three hundred eighty-one".