764120551 has 4 divisors (see below), whose sum is σ = 769181104. Its totient is φ = 759060000.

The previous prime is 764120537. The next prime is 764120563. The reversal of 764120551 is 155021467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 764120551 - 2¹¹ = 764118503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764129551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2530050 + ... + 2530351.

It is an arithmetic number, because the mean of its divisors is an integer number (192295276).

Almost surely, 2^764120551 is an apocalyptic number.

764120551 is a deficient number, since it is larger than the sum of its proper divisors (5060553).

764120551 is a wasteful number, since it uses less digits than its factorization.

764120551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060552.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 764120551 is about 27642.7305272109. The cubic root of 764120551 is about 914.2268249284.

The spelling of 764120551 in words is "seven hundred sixty-four million, one hundred twenty thousand, five hundred fifty-one".