745579851 has 4 divisors (see below), whose sum is σ = 994106472. Its totient is φ = 497053232.

The previous prime is 745579843. The next prime is 745579883. The reversal of 745579851 is 158975547.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 158975547 = 3 ⋅52991849.

It is a cyclic number.

It is not a de Polignac number, because 745579851 - 2³ = 745579843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745579794 and 745579803.

It is not an unprimeable number, because it can be changed into a prime (745571851) 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, 124263306 + ... + 124263311.

It is an arithmetic number, because the mean of its divisors is an integer number (248526618).

Almost surely, 2^745579851 is an apocalyptic number.

745579851 is a deficient number, since it is larger than the sum of its proper divisors (248526621).

745579851 is a wasteful number, since it uses less digits than its factorization.

745579851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248526620.

The product of its digits is 1764000, while the sum is 51.

The square root of 745579851 is about 27305.3081103290. The cubic root of 745579851 is about 906.7719020878.

The spelling of 745579851 in words is "seven hundred forty-five million, five hundred seventy-nine thousand, eight hundred fifty-one".