5978621840 has 160 divisors (see below), whose sum is σ = 14926187520. Its totient is φ = 2221801472.

The previous prime is 5978621813. The next prime is 5978621843. The reversal of 5978621840 is 481268795.

It is not an unprimeable number, because it can be changed into a prime (5978621843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22225226 + ... + 22225494.

It is an arithmetic number, because the mean of its divisors is an integer number (93288672).

Almost surely, 2^5978621840 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 5978621840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7463093760).

5978621840 is an abundant number, since it is smaller than the sum of its proper divisors (8947565680).

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

5978621840 is a wasteful number, since it uses less digits than its factorization.

5978621840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 609 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 50.

The square root of 5978621840 is about 77321.5483549056. The cubic root of 5978621840 is about 1814.9598748551.

The spelling of 5978621840 in words is "five billion, nine hundred seventy-eight million, six hundred twenty-one thousand, eight hundred forty".