764398741401 has 27 divisors (see below), whose sum is σ = 1154315537557. Its totient is φ = 487404206520.

The previous prime is 764398741369. The next prime is 764398741411. The reversal of 764398741401 is 104147893467.

It is a happy number.

The square root of 764398741401 is 874299.

It is a perfect power (a square), and thus also a powerful number.

764398741401 is a `hidden beast` number, since 76 + 43 + 98 + 7 + 41 + 401 = 666.

It is not a de Polignac number, because 764398741401 - 2⁵ = 764398741369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (764398741411) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 60320296 + ... + 60332966.

Almost surely, 2^764398741401 is an apocalyptic number.

764398741401 is the 874299-th square number.

764398741401 is the 437150-th centered octagonal number.

It is an amenable number.

764398741401 is a deficient number, since it is larger than the sum of its proper divisors (389916796156).

764398741401 is an frugal number, since it uses more digits than its factorization.

764398741401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25394 (or 12697 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 764398741401 in words is "seven hundred sixty-four billion, three hundred ninety-eight million, seven hundred forty-one thousand, four hundred one".