451201352140 has 72 divisors (see below), whose sum is σ = 1202422333392. Its totient is φ = 140634184320.

The previous prime is 451201352101. The next prime is 451201352141. The reversal of 451201352140 is 41253102154.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 451201352099 and 451201352108.

It is not an unprimeable number, because it can be changed into a prime (451201352141) 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 23 ways as a sum of consecutive naturals, for example, 20916927 + ... + 20938486.

It is an arithmetic number, because the mean of its divisors is an integer number (16700310186).

Almost surely, 2^451201352140 is an apocalyptic number.

It is an amenable number.

451201352140 is an abundant number, since it is smaller than the sum of its proper divisors (751220981252).

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

451201352140 is a wasteful number, since it uses less digits than its factorization.

451201352140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41855447 (or 41855438 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 451201352140 its reverse (41253102154), we get a palindrome (492454454294).

The spelling of 451201352140 in words is "four hundred fifty-one billion, two hundred one million, three hundred fifty-two thousand, one hundred forty".