39143442764 has 12 divisors (see below), whose sum is σ = 68717118624. Its totient is φ = 19509980304.

The previous prime is 39143442761. The next prime is 39143442827. The reversal of 39143442764 is 46724434193.

It is a super-2 number, since 2×39143442764² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39143442761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15433844 + ... + 15436379.

It is an arithmetic number, because the mean of its divisors is an integer number (5726426552).

Almost surely, 2^39143442764 is an apocalyptic number.

It is an amenable number.

39143442764 is a deficient number, since it is larger than the sum of its proper divisors (29573675860).

39143442764 is a wasteful number, since it uses less digits than its factorization.

39143442764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30870544 (or 30870542 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 47.

The spelling of 39143442764 in words is "thirty-nine billion, one hundred forty-three million, four hundred forty-two thousand, seven hundred sixty-four".