61905819842496 has 168 divisors, whose sum is σ = 202794347389920. Its totient is φ = 17687058241536.

The previous prime is 61905819842423. The next prime is 61905819842513. The reversal of 61905819842496 is 69424891850916.

61905819842496 is a `hidden beast` number, since 6 + 1 + 9 + 0 + 5 + 8 + 1 + 98 + 42 + 496 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 309384210 + ... + 309584238.

Almost surely, 2^{61905819842496} is an apocalyptic number.

It is an amenable number.

61905819842496 is an abundant number, since it is smaller than the sum of its proper divisors (140888527547424).

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

61905819842496 is a wasteful number, since it uses less digits than its factorization.

61905819842496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276811 (or 276798 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 72.

The spelling of 61905819842496 in words is "sixty-one trillion, nine hundred five billion, eight hundred nineteen million, eight hundred forty-two thousand, four hundred ninety-six".