20261363735542 has 8 divisors (see below), whose sum is σ = 30567722168016. Its totient is φ = 10072123012872.

The previous prime is 20261363735533. The next prime is 20261363735603. The reversal of 20261363735542 is 24553736316202.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29279427018 + ... + 29279427709.

It is an arithmetic number, because the mean of its divisors is an integer number (3820965271002).

Almost surely, 2^{20261363735542} is an apocalyptic number.

20261363735542 is a deficient number, since it is larger than the sum of its proper divisors (10306358432474).

20261363735542 is a wasteful number, since it uses less digits than its factorization.

20261363735542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58558854902.

The product of its (nonzero) digits is 5443200, while the sum is 49.

The spelling of 20261363735542 in words is "twenty trillion, two hundred sixty-one billion, three hundred sixty-three million, seven hundred thirty-five thousand, five hundred forty-two".