3640121004354 has 64 divisors (see below), whose sum is σ = 7718618718720. Its totient is φ = 1140499261440.

The previous prime is 3640121004353. The next prime is 3640121004383. The reversal of 3640121004354 is 4534001210463.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (3640121004353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 489720622 + ... + 489728054.

It is an arithmetic number, because the mean of its divisors is an integer number (120603417480).

Almost surely, 2^{3640121004354} is an apocalyptic number.

3640121004354 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3640121004354 is an abundant number, since it is smaller than the sum of its proper divisors (4078497714366).

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

3640121004354 is a wasteful number, since it uses less digits than its factorization.

3640121004354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13115.

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 3640121004354 in words is "three trillion, six hundred forty billion, one hundred twenty-one million, four thousand, three hundred fifty-four".