7628955842 has 4 divisors (see below), whose sum is σ = 11443433766. Its totient is φ = 3814477920.

The previous prime is 7628955827. The next prime is 7628955877. The reversal of 7628955842 is 2485598267.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2485598267 = 3023 ⋅822229.

It can be written as a sum of positive squares in only one way, i.e., 4907142601 + 2721813241 = 70051^2 + 52171^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1907238959 + ... + 1907238962.

Almost surely, 2^7628955842 is an apocalyptic number.

7628955842 is a deficient number, since it is larger than the sum of its proper divisors (3814477924).

7628955842 is a wasteful number, since it uses less digits than its factorization.

7628955842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814477923.

The product of its digits is 9676800, while the sum is 56.

The square root of 7628955842 is about 87343.8941311870. The cubic root of 7628955842 is about 1968.5889078074.

The spelling of 7628955842 in words is "seven billion, six hundred twenty-eight million, nine hundred fifty-five thousand, eight hundred forty-two".