740551515791 has 4 divisors (see below), whose sum is σ = 740569360392. Its totient is φ = 740533671192.

The previous prime is 740551515761. The next prime is 740551515853. The reversal of 740551515791 is 197515155047.

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 740551515791 - 2³⁸ = 465673608847 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 (740551515751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8859905 + ... + 8943098.

It is an arithmetic number, because the mean of its divisors is an integer number (185142340098).

Almost surely, 2^740551515791 is an apocalyptic number.

740551515791 is a deficient number, since it is larger than the sum of its proper divisors (17844601).

740551515791 is a wasteful number, since it uses less digits than its factorization.

740551515791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17844600.

The product of its (nonzero) digits is 1102500, while the sum is 50.

The spelling of 740551515791 in words is "seven hundred forty billion, five hundred fifty-one million, five hundred fifteen thousand, seven hundred ninety-one".