861242872350000 has 360 divisors, whose sum is σ = 3234946369462416. Its totient is φ = 196855512000000.

The previous prime is 861242872349857. The next prime is 861242872350059. The reversal of 861242872350000 is 53278242168.

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

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 51237951 + ... + 65937950.

Almost surely, 2^{861242872350000} is an apocalyptic number.

861242872350000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

861242872350000 is an abundant number, since it is smaller than the sum of its proper divisors (2373703497112416).

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

861242872350000 is a wasteful number, since it uses less digits than its factorization.

861242872350000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117175951 (or 117175918 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The spelling of 861242872350000 in words is "eight hundred sixty-one trillion, two hundred forty-two billion, eight hundred seventy-two million, three hundred fifty thousand".