1854961536 has 64 divisors (see below), whose sum is σ = 4994813520. Its totient is φ = 609841152.

The previous prime is 1854961529. The next prime is 1854961541. The reversal of 1854961536 is 6351694581.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5055 + ... + 61118.

Almost surely, 2^1854961536 is an apocalyptic number.

1854961536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1854961536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2497406760).

1854961536 is an abundant number, since it is smaller than the sum of its proper divisors (3139851984).

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

1854961536 is an equidigital number, since it uses as much as digits as its factorization.

1854961536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66263 (or 66251 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 1854961536 is about 43069.2644004979. The cubic root of 1854961536 is about 1228.6974856156.

The spelling of 1854961536 in words is "one billion, eight hundred fifty-four million, nine hundred sixty-one thousand, five hundred thirty-six".