749379906551 has 4 divisors (see below), whose sum is σ = 749382096600. Its totient is φ = 749377716504.

The previous prime is 749379906533. The next prime is 749379906589. The reversal of 749379906551 is 155609973947.

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 749379906551 - 2¹⁸ = 749379644407 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 (749379900551) 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, 458381 + ... + 1307238.

It is an arithmetic number, because the mean of its divisors is an integer number (187345524150).

Almost surely, 2^749379906551 is an apocalyptic number.

749379906551 is a deficient number, since it is larger than the sum of its proper divisors (2190049).

749379906551 is a wasteful number, since it uses less digits than its factorization.

749379906551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190048.

The product of its (nonzero) digits is 64297800, while the sum is 65.

The spelling of 749379906551 in words is "seven hundred forty-nine billion, three hundred seventy-nine million, nine hundred six thousand, five hundred fifty-one".