90935437408 has 12 divisors (see below), whose sum is σ = 179029142460. Its totient is φ = 45467718688.

The previous prime is 90935437381. The next prime is 90935437421. The reversal of 90935437408 is 80473453909.

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, 1420866178 + ... + 1420866241.

It is an arithmetic number, because the mean of its divisors is an integer number (14919095205).

Almost surely, 2^90935437408 is an apocalyptic number.

It is an amenable number.

90935437408 is a deficient number, since it is larger than the sum of its proper divisors (88093705052).

90935437408 is a wasteful number, since it uses less digits than its factorization.

90935437408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841732429 (or 2841732421 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 90935437408 in words is "ninety billion, nine hundred thirty-five million, four hundred thirty-seven thousand, four hundred eight".