7940155604 has 6 divisors (see below), whose sum is σ = 13895272314. Its totient is φ = 3970077800.

The previous prime is 7940155591. The next prime is 7940155633. The reversal of 7940155604 is 4065510497.

It can be written as a sum of positive squares in only one way, i.e., 7911746704 + 28408900 = 88948^2 + 5330^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992519447 + ... + 992519454.

It is an arithmetic number, because the mean of its divisors is an integer number (2315878719).

Almost surely, 2^7940155604 is an apocalyptic number.

It is an amenable number.

7940155604 is a deficient number, since it is larger than the sum of its proper divisors (5955116710).

7940155604 is a wasteful number, since it uses less digits than its factorization.

7940155604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985038905 (or 1985038903 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 7940155604 is about 89107.5507687199. The cubic root of 7940155604 is about 1995.0004798126. Note that the first 3 decimals are identical.

The spelling of 7940155604 in words is "seven billion, nine hundred forty million, one hundred fifty-five thousand, six hundred four".