61000501051 has 4 divisors (see below), whose sum is σ = 69714858352. Its totient is φ = 52286143752.

The previous prime is 61000500991. The next prime is 61000501061. The reversal of 61000501051 is 15010500016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61000501051 - 2²¹ = 60998403899 is a prime.

It is a super-2 number, since 2×61000501051² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61000501061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4357178640 + ... + 4357178653.

It is an arithmetic number, because the mean of its divisors is an integer number (17428714588).

Almost surely, 2^61000501051 is an apocalyptic number.

61000501051 is a deficient number, since it is larger than the sum of its proper divisors (8714357301).

61000501051 is an equidigital number, since it uses as much as digits as its factorization.

61000501051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8714357300.

The product of its (nonzero) digits is 150, while the sum is 19.

The spelling of 61000501051 in words is "sixty-one billion, five hundred one thousand, fifty-one".