61532000012 has 48 divisors (see below), whose sum is σ = 123444292608. Its totient is φ = 26289489600.

The previous prime is 61532000003. The next prime is 61532000017. The reversal of 61532000012 is 21000023516.

It is not an unprimeable number, because it can be changed into a prime (61532000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18638762 + ... + 18642062.

It is an arithmetic number, because the mean of its divisors is an integer number (2571756096).

Almost surely, 2^61532000012 is an apocalyptic number.

It is an amenable number.

61532000012 is an abundant number, since it is smaller than the sum of its proper divisors (61912292596).

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

61532000012 is a wasteful number, since it uses less digits than its factorization.

61532000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5166 (or 5164 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 61532000012 its reverse (21000023516), we get a palindrome (82532023528).

The spelling of 61532000012 in words is "sixty-one billion, five hundred thirty-two million, twelve", and thus it is an aban number.