375477774389 has 2 divisors, whose sum is σ = 375477774390. Its totient is φ = 375477774388.

The previous prime is 375477774379. The next prime is 375477774449. The reversal of 375477774389 is 983477774573.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354108304900 + 21369469489 = 595070^2 + 146183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-375477774389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (375477774379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 187738887194 + 187738887195.

It is an arithmetic number, because the mean of its divisors is an integer number (187738887195).

Almost surely, 2^375477774389 is an apocalyptic number.

It is an amenable number.

375477774389 is a deficient number, since it is larger than the sum of its proper divisors (1).

375477774389 is an equidigital number, since it uses as much as digits as its factorization.

375477774389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 871274880, while the sum is 71.

The spelling of 375477774389 in words is "three hundred seventy-five billion, four hundred seventy-seven million, seven hundred seventy-four thousand, three hundred eighty-nine".