38911247608 has 8 divisors (see below), whose sum is σ = 72958589280. Its totient is φ = 19455623800.

The previous prime is 38911247591. The next prime is 38911247633. The reversal of 38911247608 is 80674211983.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×38911247608² (a number of 22 digits) contains 22 as substring.

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, 2431952968 + ... + 2431952983.

It is an arithmetic number, because the mean of its divisors is an integer number (9119823660).

Almost surely, 2^38911247608 is an apocalyptic number.

It is an amenable number.

38911247608 is a deficient number, since it is larger than the sum of its proper divisors (34047341672).

38911247608 is a wasteful number, since it uses less digits than its factorization.

38911247608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4863905957 (or 4863905953 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 49.

The spelling of 38911247608 in words is "thirty-eight billion, nine hundred eleven million, two hundred forty-seven thousand, six hundred eight".