61671000531 has 32 divisors (see below), whose sum is σ = 94338846720. Its totient is φ = 35104242816.

The previous prime is 61671000449. The next prime is 61671000533. The reversal of 61671000531 is 13500017616.

It is not a de Polignac number, because 61671000531 - 2¹¹ = 61670998483 is a prime.

It is a super-2 number, since 2×61671000531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61671000533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13291710 + ... + 13296348.

It is an arithmetic number, because the mean of its divisors is an integer number (2948088960).

Almost surely, 2^61671000531 is an apocalyptic number.

61671000531 is a deficient number, since it is larger than the sum of its proper divisors (32667846189).

61671000531 is a wasteful number, since it uses less digits than its factorization.

61671000531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6963.

The product of its (nonzero) digits is 3780, while the sum is 30.

The spelling of 61671000531 in words is "sixty-one billion, six hundred seventy-one million, five hundred thirty-one", and thus it is an aban number.