61541344436 has 24 divisors (see below), whose sum is σ = 126525562464. Its totient is φ = 25821542880.

The previous prime is 61541344409. The next prime is 61541344463. The reversal of 61541344436 is 63444314516.

It is an interprime number because it is at equal distance from previous prime (61541344409) and next prime (61541344463).

It is a junction number, because it is equal to n+sod(n) for n = 61541344393 and 61541344402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53794310 + ... + 53795453.

It is an arithmetic number, because the mean of its divisors is an integer number (5271898436).

Almost surely, 2^61541344436 is an apocalyptic number.

It is an amenable number.

61541344436 is an abundant number, since it is smaller than the sum of its proper divisors (64984218028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61541344436 is a wasteful number, since it uses less digits than its factorization.

61541344436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107589791 (or 107589789 counting only the distinct ones).

The product of its digits is 414720, while the sum is 41.

The spelling of 61541344436 in words is "sixty-one billion, five hundred forty-one million, three hundred forty-four thousand, four hundred thirty-six".