61054652421 has 60 divisors (see below), whose sum is σ = 110009525472. Its totient is φ = 33052031856.

The previous prime is 61054652411. The next prime is 61054652443. The reversal of 61054652421 is 12425645016.

61054652421 is a `hidden beast` number, since 6 + 105 + 4 + 6 + 524 + 21 = 666.

It is not a de Polignac number, because 61054652421 - 2⁷ = 61054652293 is a prime.

It is a super-2 number, since 2×61054652421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61054652411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 55546 + ... + 353828.

Almost surely, 2^61054652421 is an apocalyptic number.

It is an amenable number.

61054652421 is a deficient number, since it is larger than the sum of its proper divisors (48954873051).

61054652421 is a wasteful number, since it uses less digits than its factorization.

61054652421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298340 (or 298312 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 61054652421 in words is "sixty-one billion, fifty-four million, six hundred fifty-two thousand, four hundred twenty-one".