19480012500 has 288 divisors, whose sum is σ = 63205954560. Its totient is φ = 4636800000.

The previous prime is 19480012493. The next prime is 19480012507. The reversal of 19480012500 is 521008491.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (19480012493) and next prime (19480012507).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19480012507) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15111856 + ... + 15113144.

It is an arithmetic number, because the mean of its divisors is an integer number (219465120).

Almost surely, 2^19480012500 is an apocalyptic number.

19480012500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19480012500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31602977280).

19480012500 is an abundant number, since it is smaller than the sum of its proper divisors (43725942060).

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

19480012500 is a wasteful number, since it uses less digits than its factorization.

19480012500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 19480012500 in words is "nineteen billion, four hundred eighty million, twelve thousand, five hundred".