1499779240080 has 640 divisors, whose sum is σ = 5649966950400. Its totient is φ = 324779212800.

The previous prime is 1499779240079. The next prime is 1499779240087. The reversal of 1499779240080 is 800429779941.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 1499779239996 and 1499779240023.

It is not an unprimeable number, because it can be changed into a prime (1499779240087) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 76779915 + ... + 76799445.

It is an arithmetic number, because the mean of its divisors is an integer number (8828073360).

Almost surely, 2^{1499779240080} is an apocalyptic number.

1499779240080 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 1499779240080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2824983475200).

1499779240080 is an abundant number, since it is smaller than the sum of its proper divisors (4150187710320).

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

1499779240080 is a wasteful number, since it uses less digits than its factorization.

1499779240080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19663 (or 19657 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 1499779240080 in words is "one trillion, four hundred ninety-nine billion, seven hundred seventy-nine million, two hundred forty thousand, eighty".