2071478864 has 80 divisors (see below), whose sum is σ = 4948099968. Its totient is φ = 818090496.

The previous prime is 2071478833. The next prime is 2071478873. The reversal of 2071478864 is 4688741702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1450919 + ... + 1452345.

Almost surely, 2^2071478864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2071478864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2474049984).

2071478864 is an abundant number, since it is smaller than the sum of its proper divisors (2876621104).

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

2071478864 is a wasteful number, since it uses less digits than its factorization.

2071478864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2452 (or 2446 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 2071478864 is about 45513.5019966603. The cubic root of 2071478864 is about 1274.7553269320.

The spelling of 2071478864 in words is "two billion, seventy-one million, four hundred seventy-eight thousand, eight hundred sixty-four".