2891574480 has 80 divisors (see below), whose sum is σ = 8969050944. Its totient is φ = 770641920.

The previous prime is 2891574479. The next prime is 2891574541. The reversal of 2891574480 is 844751982.

It is a happy number.

2891574480 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2891574480² = 16722405946774540800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 797632 + ... + 801248.

Almost surely, 2^2891574480 is an apocalyptic number.

2891574480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2891574480 is an abundant number, since it is smaller than the sum of its proper divisors (6077476464).

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

2891574480 is a wasteful number, since it uses less digits than its factorization.

2891574480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964 (or 6958 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 2891574480 is about 53773.3621786847. The cubic root of 2891574480 is about 1424.6607551931.

The spelling of 2891574480 in words is "two billion, eight hundred ninety-one million, five hundred seventy-four thousand, four hundred eighty".