1851456468 has 48 divisors (see below), whose sum is σ = 4697832384. Its totient is φ = 565148160.

The previous prime is 1851456437. The next prime is 1851456469. The reversal of 1851456468 is 8646541581.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1851456469) 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, 115098 + ... + 130193.

It is an arithmetic number, because the mean of its divisors is an integer number (97871508).

Almost surely, 2^1851456468 is an apocalyptic number.

It is an amenable number.

1851456468 is an abundant number, since it is smaller than the sum of its proper divisors (2846375916).

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

1851456468 is a wasteful number, since it uses less digits than its factorization.

1851456468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245352 (or 245350 counting only the distinct ones).

The product of its digits is 921600, while the sum is 48.

The square root of 1851456468 is about 43028.5541007364. The cubic root of 1851456468 is about 1227.9230969323.

The spelling of 1851456468 in words is "one billion, eight hundred fifty-one million, four hundred fifty-six thousand, four hundred sixty-eight".