90142402127068 has 6 divisors (see below), whose sum is σ = 157749203722376. Its totient is φ = 45071201063532.

The previous prime is 90142402127059. The next prime is 90142402127081. The reversal of 90142402127068 is 86072120424109.

It is a super-2 number, since 2×90142402127068² (a number of 29 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 (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11267800265880 + ... + 11267800265887.

Almost surely, 2^{90142402127068} is an apocalyptic number.

It is an amenable number.

90142402127068 is a deficient number, since it is larger than the sum of its proper divisors (67606801595308).

90142402127068 is a wasteful number, since it uses less digits than its factorization.

90142402127068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22535600531771 (or 22535600531769 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 90142402127068 in words is "ninety trillion, one hundred forty-two billion, four hundred two million, one hundred twenty-seven thousand, sixty-eight".