61151072746 has 4 divisors (see below), whose sum is σ = 91726609122. Its totient is φ = 30575536372.

The previous prime is 61151072699. The next prime is 61151072761. The reversal of 61151072746 is 64727015116.

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

It can be written as a sum of positive squares in only one way, i.e., 36591481521 + 24559591225 = 191289^2 + 156715^2 .

It is a junction number, because it is equal to n+sod(n) for n = 61151072699 and 61151072708.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15287768185 + ... + 15287768188.

Almost surely, 2^61151072746 is an apocalyptic number.

61151072746 is a deficient number, since it is larger than the sum of its proper divisors (30575536376).

61151072746 is a wasteful number, since it uses less digits than its factorization.

61151072746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30575536375.

The product of its (nonzero) digits is 70560, while the sum is 40.

The spelling of 61151072746 in words is "sixty-one billion, one hundred fifty-one million, seventy-two thousand, seven hundred forty-six".