38278791879 has 8 divisors (see below), whose sum is σ = 51039918960. Its totient is φ = 25518429696.

The previous prime is 38278791871. The next prime is 38278791899. The reversal of 38278791879 is 97819787283.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38278791879 - 2³ = 38278791871 is a prime.

It is a super-3 number, since 3×38278791879³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38278791871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61972 + ... + 283545.

It is an arithmetic number, because the mean of its divisors is an integer number (6379989870).

Almost surely, 2^38278791879 is an apocalyptic number.

38278791879 is a deficient number, since it is larger than the sum of its proper divisors (12761127081).

38278791879 is a wasteful number, since it uses less digits than its factorization.

38278791879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382449.

The product of its digits is 85349376, while the sum is 69.

The spelling of 38278791879 in words is "thirty-eight billion, two hundred seventy-eight million, seven hundred ninety-one thousand, eight hundred seventy-nine".