38781077028463 has 32 divisors (see below), whose sum is σ = 48566819842560. Its totient is φ = 30083808274560.

The previous prime is 38781077028431. The next prime is 38781077028493. The reversal of 38781077028463 is 36482077018783.

It is a cyclic number.

It is not a de Polignac number, because 38781077028463 - 2⁵ = 38781077028431 is a prime.

It is a super-2 number, since 2×38781077028463² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38781077028395 and 38781077028404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38781077028493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169920981 + ... + 170149057.

It is an arithmetic number, because the mean of its divisors is an integer number (1517713120080).

Almost surely, 2^{38781077028463} is an apocalyptic number.

38781077028463 is a deficient number, since it is larger than the sum of its proper divisors (9785742814097).

38781077028463 is a wasteful number, since it uses less digits than its factorization.

38781077028463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237967.

The product of its (nonzero) digits is 75866112, while the sum is 64.

The spelling of 38781077028463 in words is "thirty-eight trillion, seven hundred eighty-one billion, seventy-seven million, twenty-eight thousand, four hundred sixty-three".