61435411236 has 36 divisors (see below), whose sum is σ = 155306970000. Its totient is φ = 20476900848.

The previous prime is 61435411231. The next prime is 61435411267. The reversal of 61435411236 is 63211453416.

61435411236 is a `hidden beast` number, since 6 + 1 + 4 + 3 + 5 + 411 + 236 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 61435411236.

It is not an unprimeable number, because it can be changed into a prime (61435411231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 471115 + ... + 587213.

It is an arithmetic number, because the mean of its divisors is an integer number (4314082500).

Almost surely, 2^61435411236 is an apocalyptic number.

It is an amenable number.

61435411236 is an abundant number, since it is smaller than the sum of its proper divisors (93871558764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61435411236 is a wasteful number, since it uses less digits than its factorization.

61435411236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130808 (or 130803 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The spelling of 61435411236 in words is "sixty-one billion, four hundred thirty-five million, four hundred eleven thousand, two hundred thirty-six".