61421626510 has 16 divisors (see below), whose sum is σ = 112371370272. Its totient is φ = 24165885600.

The previous prime is 61421626493. The next prime is 61421626547. The reversal of 61421626510 is 1562612416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50344986 + ... + 50346205.

It is an arithmetic number, because the mean of its divisors is an integer number (7023210642).

Almost surely, 2^61421626510 is an apocalyptic number.

61421626510 is a deficient number, since it is larger than the sum of its proper divisors (50949743762).

61421626510 is a wasteful number, since it uses less digits than its factorization.

61421626510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100691259.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 61421626510 in words is "sixty-one billion, four hundred twenty-one million, six hundred twenty-six thousand, five hundred ten".