37851543157 has 2 divisors, whose sum is σ = 37851543158. Its totient is φ = 37851543156.

The previous prime is 37851543113. The next prime is 37851543193. The reversal of 37851543157 is 75134515873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34444019281 + 3407523876 = 185591^2 + 58374^2 .

It is a cyclic number.

It is not a de Polignac number, because 37851543157 - 2¹¹ = 37851541109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 37851543157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37851543757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18925771578 + 18925771579.

It is an arithmetic number, because the mean of its divisors is an integer number (18925771579).

Almost surely, 2^37851543157 is an apocalyptic number.

It is an amenable number.

37851543157 is a deficient number, since it is larger than the sum of its proper divisors (1).

37851543157 is an equidigital number, since it uses as much as digits as its factorization.

37851543157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1764000, while the sum is 49.

The spelling of 37851543157 in words is "thirty-seven billion, eight hundred fifty-one million, five hundred forty-three thousand, one hundred fifty-seven".