840770005120 has 32 divisors (see below), whose sum is σ = 2009965795020. Its totient is φ = 336308001792.

The previous prime is 840770005079. The next prime is 840770005121. The reversal of 840770005120 is 21500077048.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 822184681536 + 18585323584 = 906744^2 + 136328^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (840770005121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656850927 + ... + 656852206.

Almost surely, 2^840770005120 is an apocalyptic number.

840770005120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

840770005120 is an abundant number, since it is smaller than the sum of its proper divisors (1169195789900).

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

840770005120 is a wasteful number, since it uses less digits than its factorization.

840770005120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313703152 (or 1313703140 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The spelling of 840770005120 in words is "eight hundred forty billion, seven hundred seventy million, five thousand, one hundred twenty".