90691190649134 has 16 divisors (see below), whose sum is σ = 136335103090368. Its totient is φ = 45246162753792.

The previous prime is 90691190649113. The next prime is 90691190649167. The reversal of 90691190649134 is 43194609119609.

It is a happy number.

It is a super-2 number, since 2×90691190649134² (a number of 29 digits) contains 22 as substring.

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, 26712794 + ... + 29915810.

It is an arithmetic number, because the mean of its divisors is an integer number (8520943943148).

Almost surely, 2^{90691190649134} is an apocalyptic number.

90691190649134 is a deficient number, since it is larger than the sum of its proper divisors (45643912441234).

90691190649134 is a wasteful number, since it uses less digits than its factorization.

90691190649134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234059.

The product of its (nonzero) digits is 11337408, while the sum is 62.

The spelling of 90691190649134 in words is "ninety trillion, six hundred ninety-one billion, one hundred ninety million, six hundred forty-nine thousand, one hundred thirty-four".