90415747349 has 8 divisors (see below), whose sum is σ = 91584668160. Its totient is φ = 89247437136.

The previous prime is 90415747343. The next prime is 90415747391. The reversal of 90415747349 is 94374751409.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90415747349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90415747349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90415747343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149252 + ... + 450674.

It is an arithmetic number, because the mean of its divisors is an integer number (11448083520).

Almost surely, 2^90415747349 is an apocalyptic number.

It is an amenable number.

90415747349 is a deficient number, since it is larger than the sum of its proper divisors (1168920811).

90415747349 is a wasteful number, since it uses less digits than its factorization.

90415747349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305299.

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 90415747349 in words is "ninety billion, four hundred fifteen million, seven hundred forty-seven thousand, three hundred forty-nine".