61543400374 has 8 divisors (see below), whose sum is σ = 97745400648. Its totient is φ = 28961600160.

The previous prime is 61543400371. The next prime is 61543400431. The reversal of 61543400374 is 47300434516.

61543400374 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61543400371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905049972 + ... + 905050039.

It is an arithmetic number, because the mean of its divisors is an integer number (12218175081).

Almost surely, 2^61543400374 is an apocalyptic number.

61543400374 is a deficient number, since it is larger than the sum of its proper divisors (36202000274).

61543400374 is a wasteful number, since it uses less digits than its factorization.

61543400374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810100030.

The product of its (nonzero) digits is 120960, while the sum is 37.

The spelling of 61543400374 in words is "sixty-one billion, five hundred forty-three million, four hundred thousand, three hundred seventy-four".