2077639470 has 80 divisors (see below), whose sum is σ = 5636228400. Its totient is φ = 549110016.

The previous prime is 2077639439. The next prime is 2077639507. The reversal of 2077639470 is 749367702.

It is a happy number.

2077639470 is a `hidden beast` number, since 2 + 0 + 7 + 7 + 639 + 4 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 80181 + ... + 102879.

It is an arithmetic number, because the mean of its divisors is an integer number (70452855).

Almost surely, 2^2077639470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2077639470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2818114200).

2077639470 is an abundant number, since it is smaller than the sum of its proper divisors (3558588930).

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

2077639470 is a wasteful number, since it uses less digits than its factorization.

2077639470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22831 (or 22822 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 45.

The square root of 2077639470 is about 45581.1306353846. The cubic root of 2077639470 is about 1276.0177893931.

The spelling of 2077639470 in words is "two billion, seventy-seven million, six hundred thirty-nine thousand, four hundred seventy".