2780530403000 has 64 divisors (see below), whose sum is σ = 7435932753600. Its totient is φ = 953324707200.

The previous prime is 2780530402973. The next prime is 2780530403009. The reversal of 2780530403000 is 3040350872.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780530403009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 198602315 + ... + 198616314.

It is an arithmetic number, because the mean of its divisors is an integer number (116186449275).

Almost surely, 2^{2780530403000} is an apocalyptic number.

2780530403000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2780530403000 is an abundant number, since it is smaller than the sum of its proper divisors (4655402350600).

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

2780530403000 is a wasteful number, since it uses less digits than its factorization.

2780530403000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397218657 (or 397218643 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 2780530403000 its reverse (3040350872), we get a palindrome (2783570753872).

The spelling of 2780530403000 in words is "two trillion, seven hundred eighty billion, five hundred thirty million, four hundred three thousand".