90744100723550 has 12 divisors (see below), whose sum is σ = 168784027345896. Its totient is φ = 36297640289400.

The previous prime is 90744100723547. The next prime is 90744100723567. The reversal of 90744100723550 is 5532700144709.

It is a super-2 number, since 2×90744100723550² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 90744100723495 and 90744100723504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 907441007186 + ... + 907441007285.

It is an arithmetic number, because the mean of its divisors is an integer number (14065335612158).

Almost surely, 2^{90744100723550} is an apocalyptic number.

90744100723550 is a deficient number, since it is larger than the sum of its proper divisors (78039926622346).

90744100723550 is a wasteful number, since it uses less digits than its factorization.

90744100723550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814882014483 (or 1814882014478 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 47.

The spelling of 90744100723550 in words is "ninety trillion, seven hundred forty-four billion, one hundred million, seven hundred twenty-three thousand, five hundred fifty".