8461623923240 has 32 divisors (see below), whose sum is σ = 20158574642280. Its totient is φ = 3185552535552.

The previous prime is 8461623923239. The next prime is 8461623923251. The reversal of 8461623923240 is 423293261648.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7653289865764 + 808334057476 = 2766458^2 + 899074^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6221781617 + ... + 6221782976.

Almost surely, 2^{8461623923240} is an apocalyptic number.

It is an amenable number.

8461623923240 is an abundant number, since it is smaller than the sum of its proper divisors (11696950719040).

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

8461623923240 is a wasteful number, since it uses less digits than its factorization.

8461623923240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443564621 (or 12443564617 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 8461623923240 in words is "eight trillion, four hundred sixty-one billion, six hundred twenty-three million, nine hundred twenty-three thousand, two hundred forty".