91419935090 has 32 divisors (see below), whose sum is σ = 179725163904. Its totient is φ = 33204787840.

The previous prime is 91419935041. The next prime is 91419935093. The reversal of 91419935090 is 9053991419.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (91419935093) 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, 390614 + ... + 579153.

It is an arithmetic number, because the mean of its divisors is an integer number (5616411372).

Almost surely, 2^91419935090 is an apocalyptic number.

91419935090 is a deficient number, since it is larger than the sum of its proper divisors (88305228814).

91419935090 is a wasteful number, since it uses less digits than its factorization.

91419935090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970642.

The product of its (nonzero) digits is 393660, while the sum is 50.

The spelling of 91419935090 in words is "ninety-one billion, four hundred nineteen million, nine hundred thirty-five thousand, ninety".