1012090378942 has 16 divisors (see below), whose sum is σ = 1524591616320. Its totient is φ = 503893462912.

The previous prime is 1012090378877. The next prime is 1012090378961. The reversal of 1012090378942 is 2498730902101.

It is a happy number.

It is a super-2 number, since 2×1012090378942² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012090378892 and 1012090378901.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7848378 + ... + 7976290.

It is an arithmetic number, because the mean of its divisors is an integer number (95286976020).

Almost surely, 2^{1012090378942} is an apocalyptic number.

1012090378942 is a deficient number, since it is larger than the sum of its proper divisors (512501237378).

1012090378942 is a wasteful number, since it uses less digits than its factorization.

1012090378942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144707.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 1012090378942 in words is "one trillion, twelve billion, ninety million, three hundred seventy-eight thousand, nine hundred forty-two".