38782879802 has 4 divisors (see below), whose sum is σ = 58174319706. Its totient is φ = 19391439900.

The previous prime is 38782879799. The next prime is 38782879813. The reversal of 38782879802 is 20897828783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 20897828783 = 13 ⋅1607525291.

It can be written as a sum of positive squares in only one way, i.e., 37569681241 + 1213198561 = 193829^2 + 34831^2 .

It is a super-2 number, since 2×38782879802² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9695719949 + ... + 9695719952.

Almost surely, 2^38782879802 is an apocalyptic number.

38782879802 is a deficient number, since it is larger than the sum of its proper divisors (19391439904).

38782879802 is a wasteful number, since it uses less digits than its factorization.

38782879802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19391439903.

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 38782879802 in words is "thirty-eight billion, seven hundred eighty-two million, eight hundred seventy-nine thousand, eight hundred two".