61425267557451 has 8 divisors (see below), whose sum is σ = 93600407706624. Its totient is φ = 35100152889960.

The previous prime is 61425267557383. The next prime is 61425267557461. The reversal of 61425267557451 is 15475576252416.

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

It is not a de Polignac number, because 61425267557451 - 2¹¹ = 61425267555403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61425267557461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1462506370395 + ... + 1462506370436.

It is an arithmetic number, because the mean of its divisors is an integer number (11700050963328).

Almost surely, 2^{61425267557451} is an apocalyptic number.

61425267557451 is a deficient number, since it is larger than the sum of its proper divisors (32175140149173).

61425267557451 is a wasteful number, since it uses less digits than its factorization.

61425267557451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925012740841.

The product of its digits is 70560000, while the sum is 60.

The spelling of 61425267557451 in words is "sixty-one trillion, four hundred twenty-five billion, two hundred sixty-seven million, five hundred fifty-seven thousand, four hundred fifty-one".