38678653383757 has 4 divisors (see below), whose sum is σ = 38822440199580. Its totient is φ = 38534866567936.

The previous prime is 38678653383739. The next prime is 38678653383791. The reversal of 38678653383757 is 75738335687683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8075253206601 + 30603400177156 = 2841699^2 + 5532034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38678653383757 is a prime.

It is a super-2 number, since 2×38678653383757² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38678053383757) 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, 71893407508 + ... + 71893408045.

It is an arithmetic number, because the mean of its divisors is an integer number (9705610049895).

Almost surely, 2^{38678653383757} is an apocalyptic number.

It is an amenable number.

38678653383757 is a deficient number, since it is larger than the sum of its proper divisors (143786815823).

38678653383757 is a wasteful number, since it uses less digits than its factorization.

38678653383757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143786815822.

The product of its digits is 12802406400, while the sum is 79.

The spelling of 38678653383757 in words is "thirty-eight trillion, six hundred seventy-eight billion, six hundred fifty-three million, three hundred eighty-three thousand, seven hundred fifty-seven".