5451681400 has 96 divisors (see below), whose sum is σ = 14555318400. Its totient is φ = 1878076800.

The previous prime is 5451681379. The next prime is 5451681407. The reversal of 5451681400 is 41861545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5451681407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23412 + ... + 107011.

It is an arithmetic number, because the mean of its divisors is an integer number (151617900).

Almost surely, 2^5451681400 is an apocalyptic number.

5451681400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5451681400 is an abundant number, since it is smaller than the sum of its proper divisors (9103637000).

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

5451681400 is a wasteful number, since it uses less digits than its factorization.

5451681400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130469 (or 130460 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 5451681400 is about 73835.5023007225. The cubic root of 5451681400 is about 1759.9898200169.

The spelling of 5451681400 in words is "five billion, four hundred fifty-one million, six hundred eighty-one thousand, four hundred".