61542259429 has 16 divisors (see below), whose sum is σ = 71148792960. Its totient is φ = 52139831040.

The previous prime is 61542259417. The next prime is 61542259459. The reversal of 61542259429 is 92495224516.

It is a happy number.

61542259429 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61542259429 - 2¹⁵ = 61542226661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61542259409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1980049 + ... + 2010889.

It is an arithmetic number, because the mean of its divisors is an integer number (4446799560).

Almost surely, 2^61542259429 is an apocalyptic number.

It is an amenable number.

61542259429 is a deficient number, since it is larger than the sum of its proper divisors (9606533531).

61542259429 is a wasteful number, since it uses less digits than its factorization.

61542259429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34140.

The product of its digits is 1555200, while the sum is 49.

The spelling of 61542259429 in words is "sixty-one billion, five hundred forty-two million, two hundred fifty-nine thousand, four hundred twenty-nine".