1914521134656 has 168 divisors, whose sum is σ = 5486874354144. Its totient is φ = 588896256000.

The previous prime is 1914521134639. The next prime is 1914521134657. The reversal of 1914521134656 is 6564311254191.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1914521134657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129817075 + ... + 129831821.

Almost surely, 2^{1914521134656} is an apocalyptic number.

1914521134656 is a gapful number since it is divisible by the number (16) 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 1914521134656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2743437177072).

1914521134656 is an abundant number, since it is smaller than the sum of its proper divisors (3572353219488).

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

1914521134656 is a wasteful number, since it uses less digits than its factorization.

1914521134656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18789 (or 18766 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The spelling of 1914521134656 in words is "one trillion, nine hundred fourteen billion, five hundred twenty-one million, one hundred thirty-four thousand, six hundred fifty-six".