773402401489 has 9 divisors (see below), whose sum is σ = 780793011817. Its totient is φ = 766081121764.

The previous prime is 773402401403. The next prime is 773402401511. The reversal of 773402401489 is 984104204377.

The square root of 773402401489 is 879433.

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

It is not a de Polignac number, because 773402401489 - 2¹³ = 773402393297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (773402407489) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 94095222 + ... + 94103440.

Almost surely, 2^773402401489 is an apocalyptic number.

773402401489 is the 879433-rd square number.

773402401489 is the 439717-th centered octagonal number.

It is an amenable number.

773402401489 is a deficient number, since it is larger than the sum of its proper divisors (7390610328).

773402401489 is an frugal number, since it uses more digits than its factorization.

773402401489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16652 (or 8326 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 49.

Multiplying 773402401489 by its sum of digits (49), we get a square (37896717672961 = 6156031²).

The spelling of 773402401489 in words is "seven hundred seventy-three billion, four hundred two million, four hundred one thousand, four hundred eighty-nine".