511454625345340 has 96 divisors (see below), whose sum is σ = 1155108540902400. Its totient is φ = 189613516366080.

The previous prime is 511454625345331. The next prime is 511454625345341. The reversal of 511454625345340 is 43543526454115.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511454625345341) 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, 38094870 + ... + 49740610.

It is an arithmetic number, because the mean of its divisors is an integer number (12032380634400).

Almost surely, 2^{511454625345340} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 511454625345340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (577554270451200).

511454625345340 is an abundant number, since it is smaller than the sum of its proper divisors (643653915557060).

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

511454625345340 is a wasteful number, since it uses less digits than its factorization.

511454625345340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11648275 (or 11648273 counting only the distinct ones).

The product of its (nonzero) digits is 17280000, while the sum is 52.

The spelling of 511454625345340 in words is "five hundred eleven trillion, four hundred fifty-four billion, six hundred twenty-five million, three hundred forty-five thousand, three hundred forty".