877707821240 has 16 divisors (see below), whose sum is σ = 1974842597880. Its totient is φ = 351083128480.

The previous prime is 877707821201. The next prime is 877707821251. The reversal of 877707821240 is 42128707778.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10971347726 + ... + 10971347805.

Almost surely, 2^877707821240 is an apocalyptic number.

It is an amenable number.

877707821240 is an abundant number, since it is smaller than the sum of its proper divisors (1097134776640).

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

877707821240 is a wasteful number, since it uses less digits than its factorization.

877707821240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21942695542 (or 21942695538 counting only the distinct ones).

The product of its (nonzero) digits is 2458624, while the sum is 53.

The spelling of 877707821240 in words is "eight hundred seventy-seven billion, seven hundred seven million, eight hundred twenty-one thousand, two hundred forty".