2047945680 has 480 divisors, whose sum is σ = 7958740608. Its totient is φ = 485222400.

The previous prime is 2047945673. The next prime is 2047945709. The reversal of 2047945680 is 865497402.

It is a happy number.

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 95 ways as a sum of consecutive naturals, for example, 13044162 + ... + 13044318.

Almost surely, 2^2047945680 is an apocalyptic number.

2047945680 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 2047945680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3979370304).

2047945680 is an abundant number, since it is smaller than the sum of its proper divisors (5910794928).

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

2047945680 is a wasteful number, since it uses less digits than its factorization.

2047945680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 2047945680 is about 45254.2338350789. The cubic root of 2047945680 is about 1269.9096139199.

The spelling of 2047945680 in words is "two billion, forty-seven million, nine hundred forty-five thousand, six hundred eighty".