61426238619 has 8 divisors (see below), whose sum is σ = 81911060560. Its totient is φ = 40946121216.

The previous prime is 61426238617. The next prime is 61426238623. The reversal of 61426238619 is 91683262416.

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

It is not a de Polignac number, because 61426238619 - 2¹ = 61426238617 is a prime.

It is a super-2 number, since 2×61426238619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61426238617) 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, 1145554 + ... + 1197975.

It is an arithmetic number, because the mean of its divisors is an integer number (10238882570).

Almost surely, 2^61426238619 is an apocalyptic number.

61426238619 is a deficient number, since it is larger than the sum of its proper divisors (20484821941).

61426238619 is a wasteful number, since it uses less digits than its factorization.

61426238619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352269.

The product of its digits is 746496, while the sum is 48.

The spelling of 61426238619 in words is "sixty-one billion, four hundred twenty-six million, two hundred thirty-eight thousand, six hundred nineteen".