351899320477 has 2 divisors, whose sum is σ = 351899320478. Its totient is φ = 351899320476.

The previous prime is 351899320463. The next prime is 351899320519. The reversal of 351899320477 is 774023998153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320742128281 + 31157192196 = 566341^2 + 176514^2 .

It is a cyclic number.

It is not a de Polignac number, because 351899320477 - 2³¹ = 349751836829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351899320277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175949660238 + 175949660239.

It is an arithmetic number, because the mean of its divisors is an integer number (175949660239).

Almost surely, 2^351899320477 is an apocalyptic number.

It is an amenable number.

351899320477 is a deficient number, since it is larger than the sum of its proper divisors (1).

351899320477 is an equidigital number, since it uses as much as digits as its factorization.

351899320477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 351899320477 in words is "three hundred fifty-one billion, eight hundred ninety-nine million, three hundred twenty thousand, four hundred seventy-seven".