375681453642 has 288 divisors, whose sum is σ = 933412019904. Its totient is φ = 109057428480.

The previous prime is 375681453611. The next prime is 375681453649. The reversal of 375681453642 is 246354186573.

375681453642 is a `hidden beast` number, since 3 + 7 + 5 + 68 + 1 + 4 + 536 + 42 = 666.

It is a super-2 number, since 2×375681453642² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (375681453649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1082655313 + ... + 1082655659.

It is an arithmetic number, because the mean of its divisors is an integer number (3241013958).

Almost surely, 2^375681453642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 375681453642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466706009952).

375681453642 is an abundant number, since it is smaller than the sum of its proper divisors (557730566262).

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

375681453642 is a wasteful number, since it uses less digits than its factorization.

375681453642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 612 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 375681453642 in words is "three hundred seventy-five billion, six hundred eighty-one million, four hundred fifty-three thousand, six hundred forty-two".