18962989740 has 72 divisors (see below), whose sum is σ = 57536610768. Its totient is φ = 5055431040.

The previous prime is 18962989739. The next prime is 18962989741. The reversal of 18962989740 is 4798926981.

It is an interprime number because it is at equal distance from previous prime (18962989739) and next prime (18962989741).

It is not an unprimeable number, because it can be changed into a prime (18962989741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 775095 + ... + 799185.

It is an arithmetic number, because the mean of its divisors is an integer number (799119594).

Almost surely, 2^18962989740 is an apocalyptic number.

18962989740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18962989740 is an abundant number, since it is smaller than the sum of its proper divisors (38573621028).

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

18962989740 is a wasteful number, since it uses less digits than its factorization.

18962989740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28479 (or 28474 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 18962989740 in words is "eighteen billion, nine hundred sixty-two million, nine hundred eighty-nine thousand, seven hundred forty".