18400526716 has 48 divisors (see below), whose sum is σ = 38119390848. Its totient is φ = 7661534400.

The previous prime is 18400526713. The next prime is 18400526731. The reversal of 18400526716 is 61762500481.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18400526713) 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, 47850 + ... + 197713.

It is an arithmetic number, because the mean of its divisors is an integer number (794153976).

Almost surely, 2^18400526716 is an apocalyptic number.

It is an amenable number.

18400526716 is an abundant number, since it is smaller than the sum of its proper divisors (19718864132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18400526716 is a wasteful number, since it uses less digits than its factorization.

18400526716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245722 (or 245720 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 18400526716 in words is "eighteen billion, four hundred million, five hundred twenty-six thousand, seven hundred sixteen".