740064275261 has 4 divisors (see below), whose sum is σ = 741215231232. Its totient is φ = 738913319292.

The previous prime is 740064275239. The next prime is 740064275281. The reversal of 740064275261 is 162572460047.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 162572460047 = 181 ⋅898190387.

It is a cyclic number.

It is not a de Polignac number, because 740064275261 - 2³⁴ = 722884406077 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 (740064275281) 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, 575477021 + ... + 575478306.

It is an arithmetic number, because the mean of its divisors is an integer number (185303807808).

Almost surely, 2^740064275261 is an apocalyptic number.

It is an amenable number.

740064275261 is a deficient number, since it is larger than the sum of its proper divisors (1150955971).

740064275261 is a wasteful number, since it uses less digits than its factorization.

740064275261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150955970.

The product of its (nonzero) digits is 564480, while the sum is 44.

The spelling of 740064275261 in words is "seven hundred forty billion, sixty-four million, two hundred seventy-five thousand, two hundred sixty-one".