61541436215 has 16 divisors (see below), whose sum is σ = 84410683200. Its totient is φ = 42194342400.

The previous prime is 61541436197. The next prime is 61541436263. The reversal of 61541436215 is 51263414516.

It is not a de Polignac number, because 61541436215 - 2²⁸ = 61273000759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167615 + ... + 388815.

It is an arithmetic number, because the mean of its divisors is an integer number (5275667700).

Almost surely, 2^61541436215 is an apocalyptic number.

61541436215 is a deficient number, since it is larger than the sum of its proper divisors (22869246985).

61541436215 is a wasteful number, since it uses less digits than its factorization.

61541436215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229162.

The product of its digits is 86400, while the sum is 38.

The spelling of 61541436215 in words is "sixty-one billion, five hundred forty-one million, four hundred thirty-six thousand, two hundred fifteen".