42919916393828 has 6 divisors (see below), whose sum is σ = 75109853689206. Its totient is φ = 21459958196912.

The previous prime is 42919916393789. The next prime is 42919916393857. The reversal of 42919916393828 is 82839361991924.

It can be written as a sum of positive squares in only one way, i.e., 39197015605504 + 3722900788324 = 6260752^2 + 1929482^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5364989549225 + ... + 5364989549232.

It is an arithmetic number, because the mean of its divisors is an integer number (12518308948201).

Almost surely, 2^{42919916393828} is an apocalyptic number.

It is an amenable number.

42919916393828 is a deficient number, since it is larger than the sum of its proper divisors (32189937295378).

42919916393828 is a wasteful number, since it uses less digits than its factorization.

42919916393828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729979098461 (or 10729979098459 counting only the distinct ones).

The product of its digits is 362797056, while the sum is 74.

The spelling of 42919916393828 in words is "forty-two trillion, nine hundred nineteen billion, nine hundred sixteen million, three hundred ninety-three thousand, eight hundred twenty-eight".