61192290855 has 64 divisors (see below), whose sum is σ = 106274488320. Its totient is φ = 29973081600.

The previous prime is 61192290847. The next prime is 61192290869. The reversal of 61192290855 is 55809229116.

61192290855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61192290855 - 2³ = 61192290847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1794010 + ... + 1827800.

It is an arithmetic number, because the mean of its divisors is an integer number (1660538880).

Almost surely, 2^61192290855 is an apocalyptic number.

61192290855 is a deficient number, since it is larger than the sum of its proper divisors (45082197465).

61192290855 is a wasteful number, since it uses less digits than its factorization.

61192290855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34032.

The product of its (nonzero) digits is 388800, while the sum is 48.

The spelling of 61192290855 in words is "sixty-one billion, one hundred ninety-two million, two hundred ninety thousand, eight hundred fifty-five".