61431212876 has 24 divisors (see below), whose sum is σ = 118315635984. Its totient is φ = 27676167680.

The previous prime is 61431212873. The next prime is 61431212891. The reversal of 61431212876 is 67821213416.

It is not an unprimeable number, because it can be changed into a prime (61431212873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6172745 + ... + 6182688.

It is an arithmetic number, because the mean of its divisors is an integer number (4929818166).

Almost surely, 2^61431212876 is an apocalyptic number.

It is an amenable number.

61431212876 is a deficient number, since it is larger than the sum of its proper divisors (56884423108).

61431212876 is a wasteful number, since it uses less digits than its factorization.

61431212876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12355561 (or 12355559 counting only the distinct ones).

The product of its digits is 96768, while the sum is 41.

The spelling of 61431212876 in words is "sixty-one billion, four hundred thirty-one million, two hundred twelve thousand, eight hundred seventy-six".