90734055772 has 6 divisors (see below), whose sum is σ = 158784597608. Its totient is φ = 45367027884.

The previous prime is 90734055767. The next prime is 90734055773. The reversal of 90734055772 is 27755043709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90734055773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11341756968 + ... + 11341756975.

Almost surely, 2^90734055772 is an apocalyptic number.

It is an amenable number.

90734055772 is a deficient number, since it is larger than the sum of its proper divisors (68050541836).

90734055772 is a wasteful number, since it uses less digits than its factorization.

90734055772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22683513947 (or 22683513945 counting only the distinct ones).

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 90734055772 in words is "ninety billion, seven hundred thirty-four million, fifty-five thousand, seven hundred seventy-two".