612407344477 has 2 divisors, whose sum is σ = 612407344478. Its totient is φ = 612407344476.

The previous prime is 612407344363. The next prime is 612407344529. The reversal of 612407344477 is 774443704216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471400335396 + 141007009081 = 686586^2 + 375509^2 .

It is a cyclic number.

It is not a de Polignac number, because 612407344477 - 2⁷ = 612407344349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 612407344477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612407344277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306203672238 + 306203672239.

It is an arithmetic number, because the mean of its divisors is an integer number (306203672239).

Almost surely, 2^612407344477 is an apocalyptic number.

It is an amenable number.

612407344477 is a deficient number, since it is larger than the sum of its proper divisors (1).

612407344477 is an equidigital number, since it uses as much as digits as its factorization.

612407344477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3161088, while the sum is 49.

The spelling of 612407344477 in words is "six hundred twelve billion, four hundred seven million, three hundred forty-four thousand, four hundred seventy-seven".