1865972064 has 96 divisors (see below), whose sum is σ = 5624760960. Its totient is φ = 535680000.

The previous prime is 1865972063. The next prime is 1865972099. The reversal of 1865972064 is 4602795681.

1865972064 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1865972063) 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, 26437 + ... + 66564.

It is an arithmetic number, because the mean of its divisors is an integer number (58591260).

Almost surely, 2^1865972064 is an apocalyptic number.

It is an amenable number.

1865972064 is an abundant number, since it is smaller than the sum of its proper divisors (3758788896).

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

1865972064 is a wasteful number, since it uses less digits than its factorization.

1865972064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93044 (or 93036 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 1865972064 is about 43196.8987775743. The cubic root of 1865972064 is about 1231.1237585050.

The spelling of 1865972064 in words is "one billion, eight hundred sixty-five million, nine hundred seventy-two thousand, sixty-four".