90504026542 has 16 divisors (see below), whose sum is σ = 145941546240. Its totient is φ = 41958192888.

The previous prime is 90504026491. The next prime is 90504026563. The reversal of 90504026542 is 24562040509.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25335288 + ... + 25338859.

It is an arithmetic number, because the mean of its divisors is an integer number (9121346640).

Almost surely, 2^90504026542 is an apocalyptic number.

90504026542 is a deficient number, since it is larger than the sum of its proper divisors (55437519698).

90504026542 is a wasteful number, since it uses less digits than its factorization.

90504026542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50674215.

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 90504026542 in words is "ninety billion, five hundred four million, twenty-six thousand, five hundred forty-two".