1864803245 has 16 divisors (see below), whose sum is σ = 2283603840. Its totient is φ = 1461480000.

The previous prime is 1864803221. The next prime is 1864803257. The reversal of 1864803245 is 5423084681.

It is a de Polignac number, because none of the positive numbers 2^k-1864803245 is a prime.

It is a super-2 number, since 2×1864803245² = 6954982285125060050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64376 + ... + 88734.

It is an arithmetic number, because the mean of its divisors is an integer number (142725240).

Almost surely, 2^1864803245 is an apocalyptic number.

It is an amenable number.

1864803245 is a deficient number, since it is larger than the sum of its proper divisors (418800595).

1864803245 is a wasteful number, since it uses less digits than its factorization.

1864803245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24676.

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 1864803245 is about 43183.3676894241. The cubic root of 1864803245 is about 1230.8666518703.

The spelling of 1864803245 in words is "one billion, eight hundred sixty-four million, eight hundred three thousand, two hundred forty-five".