135944465400 has 192 divisors, whose sum is σ = 469586239200. Its totient is φ = 36148654080.

The previous prime is 135944465339. The next prime is 135944465407. The reversal of 135944465400 is 4564449531.

135944465400 is a `hidden beast` number, since 1 + 3 + 594 + 4 + 4 + 6 + 54 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135944465407) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1870542 + ... + 1941858.

Almost surely, 2^135944465400 is an apocalyptic number.

135944465400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135944465400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234793119600).

135944465400 is an abundant number, since it is smaller than the sum of its proper divisors (333641773800).

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

135944465400 is a wasteful number, since it uses less digits than its factorization.

135944465400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71695 (or 71680 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 135944465400 in words is "one hundred thirty-five billion, nine hundred forty-four million, four hundred sixty-five thousand, four hundred".