2617702978540 has 96 divisors (see below), whose sum is σ = 6179826280320. Its totient is φ = 924154361856.

The previous prime is 2617702978529. The next prime is 2617702978547. The reversal of 2617702978540 is 458792077162.

2617702978540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2617702978547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15566026 + ... + 15733294.

It is an arithmetic number, because the mean of its divisors is an integer number (64373190420).

Almost surely, 2^{2617702978540} is an apocalyptic number.

2617702978540 is a gapful number since it is divisible by the number (20) 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 2617702978540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3089913140160).

2617702978540 is an abundant number, since it is smaller than the sum of its proper divisors (3562123301780).

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

2617702978540 is a wasteful number, since it uses less digits than its factorization.

2617702978540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169931 (or 169929 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 2617702978540 in words is "two trillion, six hundred seventeen billion, seven hundred two million, nine hundred seventy-eight thousand, five hundred forty".