7260742391 has 4 divisors (see below), whose sum is σ = 8297991312. Its totient is φ = 6223493472.

The previous prime is 7260742319. The next prime is 7260742417. The reversal of 7260742391 is 1932470627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1932470627 = 25447 ⋅75941.

It is not a de Polignac number, because 7260742391 - 2¹⁴ = 7260726007 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 (7260742301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518624450 + ... + 518624463.

It is an arithmetic number, because the mean of its divisors is an integer number (2074497828).

Almost surely, 2^7260742391 is an apocalyptic number.

7260742391 is a deficient number, since it is larger than the sum of its proper divisors (1037248921).

7260742391 is a wasteful number, since it uses less digits than its factorization.

7260742391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037248920.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 7260742391 is about 85209.9899718337. The cubic root of 7260742391 is about 1936.3937674304.

The spelling of 7260742391 in words is "seven billion, two hundred sixty million, seven hundred forty-two thousand, three hundred ninety-one".