90858038546 has 32 divisors (see below), whose sum is σ = 155295024768. Its totient is φ = 39464275840.

The previous prime is 90858038543. The next prime is 90858038573. The reversal of 90858038546 is 64583085809.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 90858038491 and 90858038500.

It is not an unprimeable number, because it can be changed into a prime (90858038543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423950 + ... + 601206.

It is an arithmetic number, because the mean of its divisors is an integer number (4852969524).

Almost surely, 2^90858038546 is an apocalyptic number.

90858038546 is a deficient number, since it is larger than the sum of its proper divisors (64436986222).

90858038546 is a wasteful number, since it uses less digits than its factorization.

90858038546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178306.

The product of its (nonzero) digits is 8294400, while the sum is 56.

The spelling of 90858038546 in words is "ninety billion, eight hundred fifty-eight million, thirty-eight thousand, five hundred forty-six".