90142963414667 has 4 divisors (see below), whose sum is σ = 90228732172536. Its totient is φ = 90057194656800.

The previous prime is 90142963414663. The next prime is 90142963414687. The reversal of 90142963414667 is 76641436924109.

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

It is a cyclic number.

It is not a de Polignac number, because 90142963414667 - 2² = 90142963414663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90142963414663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42884377358 + ... + 42884379459.

It is an arithmetic number, because the mean of its divisors is an integer number (22557183043134).

Almost surely, 2^{90142963414667} is an apocalyptic number.

90142963414667 is a deficient number, since it is larger than the sum of its proper divisors (85768757869).

90142963414667 is a wasteful number, since it uses less digits than its factorization.

90142963414667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85768757868.

The product of its (nonzero) digits is 47029248, while the sum is 62.

The spelling of 90142963414667 in words is "ninety trillion, one hundred forty-two billion, nine hundred sixty-three million, four hundred fourteen thousand, six hundred sixty-seven".