61743075394 has 32 divisors (see below), whose sum is σ = 124349694336. Its totient is φ = 22205301120.

The previous prime is 61743075341. The next prime is 61743075409. The reversal of 61743075394 is 49357034716.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15418347 + ... + 15422350.

It is an arithmetic number, because the mean of its divisors is an integer number (3885927948).

Almost surely, 2^61743075394 is an apocalyptic number.

61743075394 is an abundant number, since it is smaller than the sum of its proper divisors (62606618942).

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

61743075394 is a wasteful number, since it uses less digits than its factorization.

61743075394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30840730.

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 61743075394 in words is "sixty-one billion, seven hundred forty-three million, seventy-five thousand, three hundred ninety-four".