18761472741 has 16 divisors (see below), whose sum is σ = 27314994240. Its totient is φ = 11359931520.

The previous prime is 18761472683. The next prime is 18761472749. The reversal of 18761472741 is 14727416781.

It is not a de Polignac number, because 18761472741 - 2¹⁸ = 18761210597 is a prime.

It is a super-2 number, since 2×18761472741² (a number of 21 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18761472749) 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, 230640 + ... + 301193.

It is an arithmetic number, because the mean of its divisors is an integer number (1707187140).

Almost surely, 2^18761472741 is an apocalyptic number.

18761472741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18761472741 is a deficient number, since it is larger than the sum of its proper divisors (8553521499).

18761472741 is a wasteful number, since it uses less digits than its factorization.

18761472741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532916.

The product of its digits is 526848, while the sum is 48.

The spelling of 18761472741 in words is "eighteen billion, seven hundred sixty-one million, four hundred seventy-two thousand, seven hundred forty-one".