61021875075 has 24 divisors (see below), whose sum is σ = 115302286848. Its totient is φ = 27895714080.

The previous prime is 61021875029. The next prime is 61021875107. The reversal of 61021875075 is 57057812016.

It is not a de Polignac number, because 61021875075 - 2¹³ = 61021866883 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58115547 + ... + 58116596.

It is an arithmetic number, because the mean of its divisors is an integer number (4804261952).

Almost surely, 2^61021875075 is an apocalyptic number.

61021875075 is a deficient number, since it is larger than the sum of its proper divisors (54280411773).

61021875075 is a wasteful number, since it uses less digits than its factorization.

61021875075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116232163 (or 116232158 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 42.

The spelling of 61021875075 in words is "sixty-one billion, twenty-one million, eight hundred seventy-five thousand, seventy-five".