1478928839942 has 8 divisors (see below), whose sum is σ = 2227675240800. Its totient is φ = 736370426344.

The previous prime is 1478928839929. The next prime is 1478928839951. The reversal of 1478928839942 is 2499388298741.

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

It is a super-2 number, since 2×1478928839942² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1478928839942.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1546996217 + ... + 1546997172.

It is an arithmetic number, because the mean of its divisors is an integer number (278459405100).

Almost surely, 2^{1478928839942} is an apocalyptic number.

1478928839942 is a deficient number, since it is larger than the sum of its proper divisors (748746400858).

1478928839942 is a wasteful number, since it uses less digits than its factorization.

1478928839942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093993630.

The product of its digits is 501645312, while the sum is 74.

The spelling of 1478928839942 in words is "one trillion, four hundred seventy-eight billion, nine hundred twenty-eight million, eight hundred thirty-nine thousand, nine hundred forty-two".