7661226423 has 32 divisors (see below), whose sum is σ = 10766131200. Its totient is φ = 4836592640.

The previous prime is 7661226347. The next prime is 7661226481. The reversal of 7661226423 is 3246221667.

It is a cyclic number.

It is not a de Polignac number, because 7661226423 - 2¹⁶ = 7661160887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7661246423) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3628138 + ... + 3630248.

It is an arithmetic number, because the mean of its divisors is an integer number (336441600).

Almost surely, 2^7661226423 is an apocalyptic number.

7661226423 is a deficient number, since it is larger than the sum of its proper divisors (3104904777).

7661226423 is a wasteful number, since it uses less digits than its factorization.

7661226423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its digits is 145152, while the sum is 39.

The square root of 7661226423 is about 87528.4320835236. The cubic root of 7661226423 is about 1971.3607219748.

The spelling of 7661226423 in words is "seven billion, six hundred sixty-one million, two hundred twenty-six thousand, four hundred twenty-three".