5451397540 has 24 divisors (see below), whose sum is σ = 12050458560. Its totient is φ = 2065792608.

The previous prime is 5451397513. The next prime is 5451397547. The reversal of 5451397540 is 457931545.

It is not an unprimeable number, because it can be changed into a prime (5451397547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7172512 + ... + 7173271.

It is an arithmetic number, because the mean of its divisors is an integer number (502102440).

Almost surely, 2^5451397540 is an apocalyptic number.

It is an amenable number.

5451397540 is an abundant number, since it is smaller than the sum of its proper divisors (6599061020).

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

5451397540 is a wasteful number, since it uses less digits than its factorization.

5451397540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14345811 (or 14345809 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 5451397540 is about 73833.5800296857. The cubic root of 5451397540 is about 1759.9592729040.

The spelling of 5451397540 in words is "five billion, four hundred fifty-one million, three hundred ninety-seven thousand, five hundred forty".