61240734454 has 8 divisors (see below), whose sum is σ = 91899852408. Its totient is φ = 30607450320.

The previous prime is 61240734439. The next prime is 61240734479. The reversal of 61240734454 is 45443704216.

It is a happy number.

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, 6452527 + ... + 6462010.

It is an arithmetic number, because the mean of its divisors is an integer number (11487481551).

Almost surely, 2^61240734454 is an apocalyptic number.

61240734454 is a deficient number, since it is larger than the sum of its proper divisors (30659117954).

61240734454 is a wasteful number, since it uses less digits than its factorization.

61240734454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12916910.

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 61240734454 in words is "sixty-one billion, two hundred forty million, seven hundred thirty-four thousand, four hundred fifty-four".