61406281798632 has 24 divisors (see below), whose sum is σ = 166308679871490. Its totient is φ = 20468760599520.

The previous prime is 61406281798621. The next prime is 61406281798657. The reversal of 61406281798632 is 23689718260416.

61406281798632 is a `hidden beast` number, since 6 + 1 + 406 + 2 + 81 + 7 + 98 + 63 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 49007756306916 + 12398525491716 = 7000554^2 + 3521154^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 61406281798632.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 426432512419 + ... + 426432512562.

Almost surely, 2^{61406281798632} is an apocalyptic number.

It is an amenable number.

61406281798632 is an abundant number, since it is smaller than the sum of its proper divisors (104902398072858).

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

61406281798632 is a wasteful number, since it uses less digits than its factorization.

61406281798632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 852865024993 (or 852865024986 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 61406281798632 in words is "sixty-one trillion, four hundred six billion, two hundred eighty-one million, seven hundred ninety-eight thousand, six hundred thirty-two".