746645551 has 4 divisors (see below), whose sum is σ = 758885704. Its totient is φ = 734405400.

The previous prime is 746645519. The next prime is 746645567. The reversal of 746645551 is 155546647.

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 746645551 - 2⁵ = 746645519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 746645498 and 746645507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (746645591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6119985 + ... + 6120106.

It is an arithmetic number, because the mean of its divisors is an integer number (189721426).

Almost surely, 2^746645551 is an apocalyptic number.

746645551 is a deficient number, since it is larger than the sum of its proper divisors (12240153).

746645551 is a wasteful number, since it uses less digits than its factorization.

746645551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12240152.

The product of its digits is 504000, while the sum is 43.

The square root of 746645551 is about 27324.8156626902. The cubic root of 746645551 is about 907.2037300857.

The spelling of 746645551 in words is "seven hundred forty-six million, six hundred forty-five thousand, five hundred fifty-one".