61487405357 has 8 divisors (see below), whose sum is σ = 70272820032. Its totient is φ = 52702365600.

The previous prime is 61487405339. The next prime is 61487405377. The reversal of 61487405357 is 75350478416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61487405357 - 2⁶ = 61487405293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61487405377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603182 + ... + 697712.

It is an arithmetic number, because the mean of its divisors is an integer number (8784102504).

Almost surely, 2^61487405357 is an apocalyptic number.

It is an amenable number.

61487405357 is a deficient number, since it is larger than the sum of its proper divisors (8785414675).

61487405357 is an equidigital number, since it uses as much as digits as its factorization.

61487405357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187459.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 61487405357 in words is "sixty-one billion, four hundred eighty-seven million, four hundred five thousand, three hundred fifty-seven".