7740230155 has 16 divisors (see below), whose sum is σ = 10743070464. Its totient is φ = 5243637600.

The previous prime is 7740230137. The next prime is 7740230177. The reversal of 7740230155 is 5510320477.

It is not a de Polignac number, because 7740230155 - 2⁷ = 7740230027 is a prime.

It is a super-2 number, since 2×7740230155² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7740230155.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329321 + ... + 1335130.

It is an arithmetic number, because the mean of its divisors is an integer number (671441904).

Almost surely, 2^7740230155 is an apocalyptic number.

7740230155 is a deficient number, since it is larger than the sum of its proper divisors (3002840309).

7740230155 is a wasteful number, since it uses less digits than its factorization.

7740230155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664546.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 7740230155 is about 87978.5778186940. The cubic root of 7740230155 is about 1978.1138855379.

The spelling of 7740230155 in words is "seven billion, seven hundred forty million, two hundred thirty thousand, one hundred fifty-five".