7587991442 has 16 divisors (see below), whose sum is σ = 11691412992. Its totient is φ = 3691358880.

The previous prime is 7587991421. The next prime is 7587991457. The reversal of 7587991442 is 2441997857.

It is a happy number.

It is a super-2 number, since 2×7587991442² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95978 + ... + 156165.

It is an arithmetic number, because the mean of its divisors is an integer number (730713312).

Almost surely, 2^7587991442 is an apocalyptic number.

7587991442 is a deficient number, since it is larger than the sum of its proper divisors (4103421550).

7587991442 is a wasteful number, since it uses less digits than its factorization.

7587991442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252553.

The product of its digits is 5080320, while the sum is 56.

The square root of 7587991442 is about 87109.0778392241. The cubic root of 7587991442 is about 1965.0590742081.

The spelling of 7587991442 in words is "seven billion, five hundred eighty-seven million, nine hundred ninety-one thousand, four hundred forty-two".