1387573894942 has 4 divisors (see below), whose sum is σ = 2081360842416. Its totient is φ = 693786947470.

The previous prime is 1387573894901. The next prime is 1387573895021. The reversal of 1387573894942 is 2494983757831.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1387573894942² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 346893473734 + ... + 346893473737.

It is an arithmetic number, because the mean of its divisors is an integer number (520340210604).

Almost surely, 2^{1387573894942} is an apocalyptic number.

1387573894942 is a deficient number, since it is larger than the sum of its proper divisors (693786947474).

1387573894942 is an equidigital number, since it uses as much as digits as its factorization.

1387573894942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693786947473.

The product of its digits is 365783040, while the sum is 70.

The spelling of 1387573894942 in words is "one trillion, three hundred eighty-seven billion, five hundred seventy-three million, eight hundred ninety-four thousand, nine hundred forty-two".