61071524942 has 4 divisors (see below), whose sum is σ = 91607287416. Its totient is φ = 30535762470.

The previous prime is 61071524887. The next prime is 61071524947. The reversal of 61071524942 is 24942517016.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61071524942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61071524947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15267881234 + ... + 15267881237.

It is an arithmetic number, because the mean of its divisors is an integer number (22901821854).

Almost surely, 2^61071524942 is an apocalyptic number.

61071524942 is a deficient number, since it is larger than the sum of its proper divisors (30535762474).

61071524942 is a wasteful number, since it uses less digits than its factorization.

61071524942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30535762473.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 61071524942 in words is "sixty-one billion, seventy-one million, five hundred twenty-four thousand, nine hundred forty-two".