61458763975 has 24 divisors (see below), whose sum is σ = 89449799648. Its totient is φ = 41004144000.

The previous prime is 61458763969. The next prime is 61458764009. The reversal of 61458763975 is 57936785416.

It is a happy number.

It is not a de Polignac number, because 61458763975 - 2¹⁵ = 61458731207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4739376 + ... + 4752325.

Almost surely, 2^61458763975 is an apocalyptic number.

61458763975 is a deficient number, since it is larger than the sum of its proper divisors (27991035673).

61458763975 is a wasteful number, since it uses less digits than its factorization.

61458763975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9491755 (or 9491750 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 61.

The spelling of 61458763975 in words is "sixty-one billion, four hundred fifty-eight million, seven hundred sixty-three thousand, nine hundred seventy-five".