561360765542 has 4 divisors (see below), whose sum is σ = 842041148316. Its totient is φ = 280680382770.

The previous prime is 561360765541. The next prime is 561360765547. The reversal of 561360765542 is 245567063165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561360765541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140340191384 + ... + 140340191387.

It is an arithmetic number, because the mean of its divisors is an integer number (210510287079).

Almost surely, 2^561360765542 is an apocalyptic number.

561360765542 is a deficient number, since it is larger than the sum of its proper divisors (280680382774).

561360765542 is a wasteful number, since it uses less digits than its factorization.

561360765542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280680382773.

The product of its (nonzero) digits is 4536000, while the sum is 50.

The spelling of 561360765542 in words is "five hundred sixty-one billion, three hundred sixty million, seven hundred sixty-five thousand, five hundred forty-two".