1860403249156 has 9 divisors (see below), whose sum is σ = 3255710459911. Its totient is φ = 930200260612.

The previous prime is 1860403249127. The next prime is 1860403249183. The reversal of 1860403249156 is 6519423040681.

The square root of 1860403249156 is 1363966.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1860403249156² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2386941 + ... + 3068923.

Almost surely, 2^{1860403249156} is an apocalyptic number.

1860403249156 is the 1363966-th square number.

It is an amenable number.

1860403249156 is a deficient number, since it is larger than the sum of its proper divisors (1395307210755).

1860403249156 is an frugal number, since it uses more digits than its factorization.

1860403249156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363970 (or 681985 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

Multiplying 1860403249156 by its sum of digits (49), we get a square (91159759208644 = 9547762²).

The spelling of 1860403249156 in words is "one trillion, eight hundred sixty billion, four hundred three million, two hundred forty-nine thousand, one hundred fifty-six".