2777490000 has 400 divisors, whose sum is σ = 10164746240. Its totient is φ = 734832000.

The previous prime is 2777489999. The next prime is 2777490029. The reversal of 2777490000 is 947772.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21869937 + ... + 21870063.

Almost surely, 2^2777490000 is an apocalyptic number.

2777490000 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 2777490000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5082373120).

2777490000 is an abundant number, since it is smaller than the sum of its proper divisors (7387256240).

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

2777490000 is an frugal number, since it uses more digits than its factorization.

2777490000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 2777490000 is about 52701.8974990465. The cubic root of 2777490000 is about 1405.6725629241.

The spelling of 2777490000 in words is "two billion, seven hundred seventy-seven million, four hundred ninety thousand".