742256555761 has 16 divisors (see below), whose sum is σ = 853388660608. Its totient is φ = 632408083200.

The previous prime is 742256555737. The next prime is 742256555773. The reversal of 742256555761 is 167555652247.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-742256555761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (742256555461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506026 + ... + 1319308.

It is an arithmetic number, because the mean of its divisors is an integer number (53336791288).

Almost surely, 2^742256555761 is an apocalyptic number.

It is an amenable number.

742256555761 is a deficient number, since it is larger than the sum of its proper divisors (111132104847).

742256555761 is a wasteful number, since it uses less digits than its factorization.

742256555761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814072.

The product of its digits is 17640000, while the sum is 55.

The spelling of 742256555761 in words is "seven hundred forty-two billion, two hundred fifty-six million, five hundred fifty-five thousand, seven hundred sixty-one".