715277146421 has 2 divisors, whose sum is σ = 715277146422. Its totient is φ = 715277146420.

The previous prime is 715277146411. The next prime is 715277146439. The reversal of 715277146421 is 124641772517.

715277146421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436583955025 + 278693191396 = 660745^2 + 527914^2 .

It is a cyclic number.

It is not a de Polignac number, because 715277146421 - 2³⁴ = 698097277237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715277146411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357638573210 + 357638573211.

It is an arithmetic number, because the mean of its divisors is an integer number (357638573211).

Almost surely, 2^715277146421 is an apocalyptic number.

It is an amenable number.

715277146421 is a deficient number, since it is larger than the sum of its proper divisors (1).

715277146421 is an equidigital number, since it uses as much as digits as its factorization.

715277146421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 658560, while the sum is 47.

The spelling of 715277146421 in words is "seven hundred fifteen billion, two hundred seventy-seven million, one hundred forty-six thousand, four hundred twenty-one".