1872747651 has 8 divisors (see below), whose sum is σ = 2497243840. Its totient is φ = 1248374952.

The previous prime is 1872747649. The next prime is 1872747677. The reversal of 1872747651 is 1567472781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1872747651 - 2¹ = 1872747649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1872747651.

It is not an unprimeable number, because it can be changed into a prime (1872747631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13716 + ... + 62718.

It is an arithmetic number, because the mean of its divisors is an integer number (312155480).

Almost surely, 2^1872747651 is an apocalyptic number.

1872747651 is a deficient number, since it is larger than the sum of its proper divisors (624496189).

1872747651 is a wasteful number, since it uses less digits than its factorization.

1872747651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61745.

The product of its digits is 658560, while the sum is 48.

The square root of 1872747651 is about 43275.2544879865. The cubic root of 1872747651 is about 1232.6120819641.

The spelling of 1872747651 in words is "one billion, eight hundred seventy-two million, seven hundred forty-seven thousand, six hundred fifty-one".