61501139712454 has 8 divisors (see below), whose sum is σ = 99347994920160. Its totient is φ = 28385141405736.

The previous prime is 61501139712377. The next prime is 61501139712473. The reversal of 61501139712454 is 45421793110516.

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

It is a super-3 number, since 3×61501139712454³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61501139712398 and 61501139712407.

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, 1182714225214 + ... + 1182714225265.

It is an arithmetic number, because the mean of its divisors is an integer number (12418499365020).

Almost surely, 2^{61501139712454} is an apocalyptic number.

61501139712454 is a deficient number, since it is larger than the sum of its proper divisors (37846855207706).

61501139712454 is a wasteful number, since it uses less digits than its factorization.

61501139712454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365428450494.

The product of its (nonzero) digits is 907200, while the sum is 49.

The spelling of 61501139712454 in words is "sixty-one trillion, five hundred one billion, one hundred thirty-nine million, seven hundred twelve thousand, four hundred fifty-four".