61347948259 has 24 divisors (see below), whose sum is σ = 66827248992. Its totient is φ = 56291339520.

The previous prime is 61347948227. The next prime is 61347948283. The reversal of 61347948259 is 95284974316.

It is not a de Polignac number, because 61347948259 - 2⁵ = 61347948227 is a prime.

It is a super-2 number, since 2×61347948259² (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 (61347948859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22627914 + ... + 22630624.

It is an arithmetic number, because the mean of its divisors is an integer number (2784468708).

Almost surely, 2^61347948259 is an apocalyptic number.

61347948259 is a deficient number, since it is larger than the sum of its proper divisors (5479300733).

61347948259 is a wasteful number, since it uses less digits than its factorization.

61347948259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487 (or 3474 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 58.

The spelling of 61347948259 in words is "sixty-one billion, three hundred forty-seven million, nine hundred forty-eight thousand, two hundred fifty-nine".