19860761157 has 32 divisors (see below), whose sum is σ = 28138682880. Its totient is φ = 12441105600.

The previous prime is 19860761153. The next prime is 19860761183. The reversal of 19860761157 is 75116706891.

It is not a de Polignac number, because 19860761157 - 2² = 19860761153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19860761153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463282 + ... + 504332.

It is an arithmetic number, because the mean of its divisors is an integer number (879333840).

Almost surely, 2^19860761157 is an apocalyptic number.

It is an amenable number.

19860761157 is a deficient number, since it is larger than the sum of its proper divisors (8277921723).

19860761157 is a wasteful number, since it uses less digits than its factorization.

19860761157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41233.

The product of its (nonzero) digits is 635040, while the sum is 51.

The spelling of 19860761157 in words is "nineteen billion, eight hundred sixty million, seven hundred sixty-one thousand, one hundred fifty-seven".