2667514780 has 72 divisors (see below), whose sum is σ = 6451407648. Its totient is φ = 907575552.

The previous prime is 2667514777. The next prime is 2667514781. The reversal of 2667514780 is 874157662.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2667514780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667514781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3450474 + ... + 3451246.

It is an arithmetic number, because the mean of its divisors is an integer number (89602884).

Almost surely, 2^2667514780 is an apocalyptic number.

2667514780 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 2667514780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225703824).

2667514780 is an abundant number, since it is smaller than the sum of its proper divisors (3783892868).

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

2667514780 is a wasteful number, since it uses less digits than its factorization.

2667514780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 2667514780 is about 51647.9891186482. The cubic root of 2667514780 is about 1386.8695453540.

The spelling of 2667514780 in words is "two billion, six hundred sixty-seven million, five hundred fourteen thousand, seven hundred eighty".