1863480959247 has 16 divisors (see below), whose sum is σ = 2531717918208. Its totient is φ = 1218785961120.

The previous prime is 1863480959239. The next prime is 1863480959251. The reversal of 1863480959247 is 7429590843681.

It is a happy number.

It is not a de Polignac number, because 1863480959247 - 2³ = 1863480959239 is a prime.

It is a super-2 number, since 2×1863480959247² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1863480959147) 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, 1628422 + ... + 2525612.

It is an arithmetic number, because the mean of its divisors is an integer number (158232369888).

It is a 1-persistent number, because it is pandigital, but 2⋅1863480959247 = 3726961918494 is not.

Almost surely, 2^{1863480959247} is an apocalyptic number.

1863480959247 is a deficient number, since it is larger than the sum of its proper divisors (668236958961).

1863480959247 is a wasteful number, since it uses less digits than its factorization.

1863480959247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910310.

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 1863480959247 in words is "one trillion, eight hundred sixty-three billion, four hundred eighty million, nine hundred fifty-nine thousand, two hundred forty-seven".