5451840690 has 32 divisors (see below), whose sum is σ = 13160062656. Its totient is φ = 1445419200.

The previous prime is 5451840689. The next prime is 5451840733. The reversal of 5451840690 is 960481545.

It is a super-2 number, since 2×5451840690² = 59445133818279352200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 520036 + ... + 530415.

It is an arithmetic number, because the mean of its divisors is an integer number (411251958).

Almost surely, 2^5451840690 is an apocalyptic number.

5451840690 is an abundant number, since it is smaller than the sum of its proper divisors (7708221966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5451840690 is a wasteful number, since it uses less digits than its factorization.

5451840690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050634.

The product of its (nonzero) digits is 172800, while the sum is 42.

The square root of 5451840690 is about 73836.5809744736. The cubic root of 5451840690 is about 1760.0069612758.

The spelling of 5451840690 in words is "five billion, four hundred fifty-one million, eight hundred forty thousand, six hundred ninety".