61131403706 has 16 divisors (see below), whose sum is σ = 93007294848. Its totient is φ = 30129145200.

The previous prime is 61131403703. The next prime is 61131403709. The reversal of 61131403706 is 60730413116.

It is an interprime number because it is at equal distance from previous prime (61131403703) and next prime (61131403709).

It is not an unprimeable number, because it can be changed into a prime (61131403703) 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, 712436 + ... + 793616.

It is an arithmetic number, because the mean of its divisors is an integer number (5812955928).

Almost surely, 2^61131403706 is an apocalyptic number.

61131403706 is a deficient number, since it is larger than the sum of its proper divisors (31875891142).

61131403706 is a wasteful number, since it uses less digits than its factorization.

61131403706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86557.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 61131403706 in words is "sixty-one billion, one hundred thirty-one million, four hundred three thousand, seven hundred six".