1354651250634 has 160 divisors (see below), whose sum is σ = 3345643642176. Its totient is φ = 406259297280.

The previous prime is 1354651250633. The next prime is 1354651250749. The reversal of 1354651250634 is 4360521564531.

It is a happy number.

1354651250634 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 6 + 5 + 1 + 2 + 5 + 0 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1354651250634.

It is not an unprimeable number, because it can be changed into a prime (1354651250633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 231284634 + ... + 231290490.

Almost surely, 2^{1354651250634} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1354651250634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672821821088).

1354651250634 is an abundant number, since it is smaller than the sum of its proper divisors (1990992391542).

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

1354651250634 is a wasteful number, since it uses less digits than its factorization.

1354651250634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7202 (or 7193 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 1354651250634 in words is "one trillion, three hundred fifty-four billion, six hundred fifty-one million, two hundred fifty thousand, six hundred thirty-four".