7904144652 has 24 divisors (see below), whose sum is σ = 18468393216. Its totient is φ = 2631087888.

The previous prime is 7904144639. The next prime is 7904144657. The reversal of 7904144652 is 2564414097.

It is a super-2 number, since 2×7904144652² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7904144657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444288 + ... + 461735.

It is an arithmetic number, because the mean of its divisors is an integer number (769516384).

Almost surely, 2^7904144652 is an apocalyptic number.

It is an amenable number.

7904144652 is an abundant number, since it is smaller than the sum of its proper divisors (10564248564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7904144652 is a wasteful number, since it uses less digits than its factorization.

7904144652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906757 (or 906755 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 7904144652 is about 88905.2566049950. The cubic root of 7904144652 is about 1991.9799366135.

The spelling of 7904144652 in words is "seven billion, nine hundred four million, one hundred forty-four thousand, six hundred fifty-two".