767258620489 has 3 divisors (see below), whose sum is σ = 767259496423. Its totient is φ = 767257744556.

The previous prime is 767258620451. The next prime is 767258620537. The reversal of 767258620489 is 984026852767.

The square root of 767258620489 is 875933.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 83177444025 + 684081176464 = 288405^2 + 827092^2 .

It is not a de Polignac number, because 767258620489 - 2²¹ = 767256523337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 767258620489.

It is not an unprimeable number, because it can be changed into a prime (767258620439) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 437967 + ... + 1313899.

Almost surely, 2^767258620489 is an apocalyptic number.

767258620489 is the 875933-rd square number.

767258620489 is the 437967-th centered octagonal number.

It is an amenable number.

767258620489 is a deficient number, since it is larger than the sum of its proper divisors (875934).

767258620489 is an frugal number, since it uses more digits than its factorization.

767258620489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1751866 (or 875933 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 64.

Multiplying 767258620489 by its sum of digits (64), we get a square (49104551711296 = 7007464²).

The spelling of 767258620489 in words is "seven hundred sixty-seven billion, two hundred fifty-eight million, six hundred twenty thousand, four hundred eighty-nine".