37446780061 has 4 divisors (see below), whose sum is σ = 37676515072. Its totient is φ = 37217045052.

The previous prime is 37446780023. The next prime is 37446780127. The reversal of 37446780061 is 16008764473.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37446780061 is a prime.

It is a super-2 number, since 2×37446780061² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 37446779993 and 37446780020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37446780361) 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, 114867261 + ... + 114867586.

It is an arithmetic number, because the mean of its divisors is an integer number (9419128768).

Almost surely, 2^37446780061 is an apocalyptic number.

It is an amenable number.

37446780061 is a deficient number, since it is larger than the sum of its proper divisors (229735011).

37446780061 is a wasteful number, since it uses less digits than its factorization.

37446780061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229735010.

The product of its (nonzero) digits is 677376, while the sum is 46.

The spelling of 37446780061 in words is "thirty-seven billion, four hundred forty-six million, seven hundred eighty thousand, sixty-one".