90272451019 has 8 divisors (see below), whose sum is σ = 93448455552. Its totient is φ = 87112945920.

The previous prime is 90272451013. The next prime is 90272451023. The reversal of 90272451019 is 91015427209.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 90272451019 - 2¹¹ = 90272448971 is a prime.

It is a super-2 number, since 2×90272451019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90272451013) 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, 4113724 + ... + 4135609.

It is an arithmetic number, because the mean of its divisors is an integer number (11681056944).

Almost surely, 2^90272451019 is an apocalyptic number.

90272451019 is a deficient number, since it is larger than the sum of its proper divisors (3176004533).

90272451019 is a wasteful number, since it uses less digits than its factorization.

90272451019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8249717.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 90272451019 in words is "ninety billion, two hundred seventy-two million, four hundred fifty-one thousand, nineteen".