38745487782 has 32 divisors (see below), whose sum is σ = 86377973760. Its totient is φ = 12873629160.

The previous prime is 38745487769. The next prime is 38745487871. The reversal of 38745487782 is 28778454783.

It is a happy number.

38745487782 is a `hidden beast` number, since 3 + 8 + 7 + 4 + 548 + 7 + 7 + 82 = 666.

It is a super-2 number, since 2×38745487782² (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 in 15 ways as a sum of consecutive naturals, for example, 1136758 + ... + 1170345.

It is an arithmetic number, because the mean of its divisors is an integer number (2699311680).

Almost surely, 2^38745487782 is an apocalyptic number.

38745487782 is an abundant number, since it is smaller than the sum of its proper divisors (47632485978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38745487782 is a wasteful number, since it uses less digits than its factorization.

38745487782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307425 (or 2307419 counting only the distinct ones).

The product of its digits is 84295680, while the sum is 63.

The spelling of 38745487782 in words is "thirty-eight billion, seven hundred forty-five million, four hundred eighty-seven thousand, seven hundred eighty-two".