5451969042 has 48 divisors (see below), whose sum is σ = 12874575168. Its totient is φ = 1657311840.

The previous prime is 5451969023. The next prime is 5451969043. The reversal of 5451969042 is 2409691545.

5451969042 is a `hidden beast` number, since 5 + 4 + 519 + 6 + 90 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (5451969043) 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, 120934 + ... + 159777.

It is an arithmetic number, because the mean of its divisors is an integer number (268220316).

Almost surely, 2^5451969042 is an apocalyptic number.

5451969042 is an abundant number, since it is smaller than the sum of its proper divisors (7422606126).

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

5451969042 is a wasteful number, since it uses less digits than its factorization.

5451969042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280815 (or 280812 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 5451969042 is about 73837.4501320299. The cubic root of 5451969042 is about 1760.0207730417.

The spelling of 5451969042 in words is "five billion, four hundred fifty-one million, nine hundred sixty-nine thousand, forty-two".