38979780454 has 16 divisors (see below), whose sum is σ = 61939684800. Its totient is φ = 18334353024.

The previous prime is 38979780431. The next prime is 38979780461. The reversal of 38979780454 is 45408797983.

It is a super-2 number, since 2×38979780454² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213534 + ... + 351505.

It is an arithmetic number, because the mean of its divisors is an integer number (3871230300).

Almost surely, 2^38979780454 is an apocalyptic number.

38979780454 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38979780454 is a deficient number, since it is larger than the sum of its proper divisors (22959904346).

38979780454 is a wasteful number, since it uses less digits than its factorization.

38979780454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567087.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 38979780454 in words is "thirty-eight billion, nine hundred seventy-nine million, seven hundred eighty thousand, four hundred fifty-four".