61572042214 has 4 divisors (see below), whose sum is σ = 92358063324. Its totient is φ = 30786021106.

The previous prime is 61572042167. The next prime is 61572042223. The reversal of 61572042214 is 41224027516.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×61572042214³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 61572042214.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15393010552 + ... + 15393010555.

It is an arithmetic number, because the mean of its divisors is an integer number (23089515831).

Almost surely, 2^61572042214 is an apocalyptic number.

61572042214 is a deficient number, since it is larger than the sum of its proper divisors (30786021110).

61572042214 is a wasteful number, since it uses less digits than its factorization.

61572042214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30786021109.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 61572042214 in words is "sixty-one billion, five hundred seventy-two million, forty-two thousand, two hundred fourteen".