7642251436 has 12 divisors (see below), whose sum is σ = 13386552480. Its totient is φ = 3817522160.

The previous prime is 7642251431. The next prime is 7642251439. The reversal of 7642251436 is 6341522467.

It is a super-2 number, since 2×7642251436² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7642251431) 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, 896116 + ... + 904603.

It is an arithmetic number, because the mean of its divisors is an integer number (1115546040).

Almost surely, 2^7642251436 is an apocalyptic number.

It is an amenable number.

7642251436 is a deficient number, since it is larger than the sum of its proper divisors (5744301044).

7642251436 is a wasteful number, since it uses less digits than its factorization.

7642251436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1801784 (or 1801782 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 7642251436 is about 87419.9716083230. The cubic root of 7642251436 is about 1969.7318500919.

The spelling of 7642251436 in words is "seven billion, six hundred forty-two million, two hundred fifty-one thousand, four hundred thirty-six".