38777440423671 has 40 divisors (see below), whose sum is σ = 58661674917120. Its totient is φ = 25523681640912.

The previous prime is 38777440423661. The next prime is 38777440423691. The reversal of 38777440423671 is 17632404477783.

It is a happy number.

38777440423671 is a `hidden beast` number, since 3 + 8 + 77 + 74 + 4 + 0 + 423 + 6 + 71 = 666.

It is not a de Polignac number, because 38777440423671 - 2¹⁰ = 38777440422647 is a prime.

It is a super-2 number, since 2×38777440423671² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 38777440423599 and 38777440423608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38777440423661) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 333118540 + ... + 333234926.

It is an arithmetic number, because the mean of its divisors is an integer number (1466541872928).

Almost surely, 2^{38777440423671} is an apocalyptic number.

38777440423671 is a deficient number, since it is larger than the sum of its proper divisors (19884234493449).

38777440423671 is a wasteful number, since it uses less digits than its factorization.

38777440423671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168545 (or 168536 counting only the distinct ones).

The product of its (nonzero) digits is 132765696, while the sum is 63.

The spelling of 38777440423671 in words is "thirty-eight trillion, seven hundred seventy-seven billion, four hundred forty million, four hundred twenty-three thousand, six hundred seventy-one".