2620577653540 has 96 divisors (see below), whose sum is σ = 7222261939200. Its totient is φ = 773813761920.

The previous prime is 2620577653513. The next prime is 2620577653549. The reversal of 2620577653540 is 453567750262.

It is not an unprimeable number, because it can be changed into a prime (2620577653549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44751630 + ... + 44810149.

It is an arithmetic number, because the mean of its divisors is an integer number (75231895200).

Almost surely, 2^{2620577653540} is an apocalyptic number.

2620577653540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620577653540 is an abundant number, since it is smaller than the sum of its proper divisors (4601684285660).

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

2620577653540 is a wasteful number, since it uses less digits than its factorization.

2620577653540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89561825 (or 89561823 counting only the distinct ones).

The product of its (nonzero) digits is 10584000, while the sum is 52.

The spelling of 2620577653540 in words is "two trillion, six hundred twenty billion, five hundred seventy-seven million, six hundred fifty-three thousand, five hundred forty".