7427139488 has 12 divisors (see below), whose sum is σ = 14622180930. Its totient is φ = 3713569728.

The previous prime is 7427139479. The next prime is 7427139509. The reversal of 7427139488 is 8849317247.

It can be written as a sum of positive squares in only one way, i.e., 7254269584 + 172869904 = 85172^2 + 13148^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116049023 + ... + 116049086.

Almost surely, 2^7427139488 is an apocalyptic number.

It is an amenable number.

7427139488 is a deficient number, since it is larger than the sum of its proper divisors (7195041442).

7427139488 is a wasteful number, since it uses less digits than its factorization.

7427139488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232098119 (or 232098111 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 53.

The square root of 7427139488 is about 86180.8533724284. The cubic root of 7427139488 is about 1951.0745327398.

The spelling of 7427139488 in words is "seven billion, four hundred twenty-seven million, one hundred thirty-nine thousand, four hundred eighty-eight".